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double    音標拼音: [d'ʌbəl]
n. 雙精度型
n. 兩倍
a. 兩倍的,雙重的
vt. 使加倍
vi. 加倍,快步走,加倍努力

雙精度型兩倍兩倍的,雙重的使加倍加倍,快步走,加倍努力

double
二倍


double
雙軌邏輯

double
雙 雙倍

double
adv 1: downward and forward; "he was bent double with pain"
2: two together; "some people sleep better double"
3: to double the degree; "she was doubly rewarded"; "his eyes
were double bright" [synonym: {doubly}, {double}, {twice}]
adj 1: having more than one decidedly dissimilar aspects or
qualities; "a double (or dual) role for an actor"; "the
office of a clergyman is twofold; public preaching and
private influence"- R.W.Emerson; "every episode has its
double and treble meaning"-Frederick Harrison [synonym:
{double}, {dual}, {twofold}, {two-fold}, {treble},
{threefold}, {three-fold}]
2: consisting of or involving two parts or components usually in
pairs; "an egg with a double yolk"; "a double (binary) star";
"double doors"; "dual controls for pilot and copilot"; "duple
(or double) time consists of two (or a multiple of two) beats
to a measure" [synonym: {double}, {dual}, {duple}]
3: twice as great or many; "ate a double portion"; "the dose is
doubled"; "a twofold increase" [synonym: {double}, {doubled},
{twofold}, {two-fold}]
4: used of flowers having more than the usual number of petals
in crowded or overlapping arrangements; "double
chrysanthemums have many rows of petals and are usually
spherical or hemispherical" [ant: {single}]
5: used of homologous chromosomes associated in pairs in
synapsis [synonym: {bivalent}, {double}] [ant: {multivalent},
{univalent}]
6: large enough for two; "a double bed"; "a double room"
7: having two meanings with intent to deceive; "a sly double
meaning"; "spoke with forked tongue" [synonym: {double},
{forked}]
n 1: a base hit on which the batter stops safely at second base;
"he hit a double to deep centerfield" [synonym: {double}, {two-
base hit}, {two-bagger}, {two-baser}]
2: a stand-in for movie stars to perform dangerous stunts; "his
first job in Hollywood was as a double for Clark Gable" [synonym:
{double}, {stunt man}, {stunt woman}]
3: someone who closely resembles a famous person (especially an
actor); "he could be Gingrich's double"; "she's the very
image of her mother" [synonym: {double}, {image}, {look-alike}]
4: a quantity that is twice as great as another; "36 is the
double of 18"
5: raising the stakes in a card game by a factor of 2; "I
decided his double was a bluff" [synonym: {doubling}, {double}]
v 1: increase twofold; "The population doubled within 50 years"
[synonym: {double}, {duplicate}]
2: hit a two-base hit
3: bend over or curl up, usually with laughter or pain; "He
doubled and vomited violently" [synonym: {double over}, {double},
{double up}]
4: do double duty; serve two purposes or have two functions;
"She doubles as his wife and secretary"
5: bridge: make a demand for (a card or suit)
6: make or do or perform again; "He could never replicate his
brilliant performance of the magic trick" [synonym: {duplicate},
{reduplicate}, {double}, {repeat}, {replicate}]

Double \Dou"ble\ (d[u^]b"'l), a. [OE. doble, duble, double, OF.
doble, duble, double, F. double, fr. L. duplus, fr. the root
of duo two, and perh. that of plenus full; akin to Gr.
diplo`os double. See {Two}, and {Full}, and cf. {Diploma},
{Duple}.]
1. Twofold; multiplied by two; increased by its equivalent;
made twice as large or as much, etc.
[1913 Webster]

Let a double portion of thy spirit be upon me. -- 2
Kings ii. 9.
[1913 Webster]

Darkness and tempest make a double night. --Dryden.
[1913 Webster]

2. Being in pairs; presenting two of a kind, or two in a set
together; coupled.
[1913 Webster]

[Let] The swan, on still St. Mary's lake,
Float double, swan and shadow. --Wordsworth.
[1913 Webster]

3. Divided into two; acting two parts, one openly and the
other secretly; equivocal; deceitful; insincere.
[1913 Webster]

With a double heart do they speak. -- Ps. xii. 2.
[1913 Webster]

4. (Bot.) Having the petals in a flower considerably
increased beyond the natural number, usually as the result
of cultivation and the expense of the stamens, or stamens
and pistils. The white water lily and some other plants
have their blossoms naturally double.
[1913 Webster]

Note: Double is often used as the first part of a compound
word, generally denoting two ways, or twice the number,
quantity, force, etc., twofold, or having two.
[1913 Webster]

{Double base}, or {Double bass} (Mus.), the largest and
lowest-toned instrument in the violin form; the
contrabasso or violone.

{Double convex}. See under {Convex}.

{Double counterpoint} (Mus.), that species of counterpoint or
composition, in which two of the parts may be inverted, by
setting one of them an octave higher or lower.

{Double court} (Lawn Tennis), a court laid out for four
players, two on each side.

{Double dagger} (Print.), a reference mark ([dag]) next to
the dagger ([dagger]) in order; a diesis.

{Double drum} (Mus.), a large drum that is beaten at both
ends.

{Double eagle}, a gold coin of the United States having the
value of 20 dollars.

{Double entry}. See under {Bookkeeping}.

{Double floor} (Arch.), a floor in which binding joists
support flooring joists above and ceiling joists below.
See Illust. of Double-framed floor.

{Double flower}. See {Double}, a., 4.

{Double-framed floor} (Arch.), a double floor having girders
into which the binding joists are framed.

{Double fugue} (Mus.), a fugue on two subjects.

{Double letter}.
(a) (Print.) Two letters on one shank; a ligature.
(b) A mail requiring double postage.

{Double note} (Mus.), a note of double the length of the
semibreve; a breve. See {Breve}.

{Double octave} (Mus.), an interval composed of two octaves,
or fifteen notes, in diatonic progression; a fifteenth.

{Double pica}. See under {Pica}.

{Double play} (Baseball), a play by which two players are put
out at the same time.

{Double plea} (Law), a plea alleging several matters in
answer to the declaration, where either of such matters
alone would be a sufficient bar to the action. --Stephen.

{Double point} (Geom.), a point of a curve at which two
branches cross each other. Conjugate or isolated points of
a curve are called double points, since they possess most
of the properties of double points (see {Conjugate}). They
are also called {acnodes}, and those points where the
branches of the curve really cross are called {crunodes}.
The extremity of a cusp is also a double point.

{Double quarrel}. (Eccl. Law) See {Duplex querela}, under
{Duplex}.

{Double refraction}. (Opt.) See {Refraction}.

{Double salt}. (Chem.)
(a) A mixed salt of any polybasic acid which has been
saturated by different bases or basic radicals, as the
double carbonate of sodium and potassium,
{NaKCO3.6H2O}.
(b) A molecular combination of two distinct salts, as
common alum, which consists of the sulphate of
aluminium, and the sulphate of potassium or ammonium.


{Double shuffle}, a low, noisy dance.

{Double standard} (Polit. Econ.), a double standard of
monetary values; i. e., a gold standard and a silver
standard, both of which are made legal tender.

{Double star} (Astron.), two stars so near to each other as
to be seen separate only by means of a telescope. Such
stars may be only optically near to each other, or may be
physically connected so that they revolve round their
common center of gravity, and in the latter case are
called also binary stars.

{Double time} (Mil.). Same as {Double-quick}.

{Double window}, a window having two sets of glazed sashes
with an air space between them.
[1913 Webster]


Double \Dou"ble\, n.
1. Twice as much; twice the number, sum, quantity, length,
value, and the like.
[1913 Webster]

If the thief be found, let him pay double. --Ex.
xxii. 7.
[1913 Webster]

2. Among compositors, a doublet (see {Doublet}, 2.); among
pressmen, a sheet that is twice pulled, and blurred.
[1913 Webster]

3. That which is doubled over or together; a doubling; a
plait; a fold.
[1913 Webster]

Rolled up in sevenfold double
Of plagues. --Marston.
[1913 Webster]

4. A turn or circuit in running to escape pursues; hence, a
trick; a shift; an artifice.
[1913 Webster]

These men are too well acquainted with the chase to
be flung off by any false steps or doubles.
--Addison.
[1913 Webster]

5. A person or thing that is the counterpart of another; a
duplicate; copy; (Obs.) transcript; -- now chiefly used of
persons. Hence, a wraith.
[1913 Webster]

My charming friend . . . has, I am almost sure, a
double, who preaches his afternoon sermons for him.
--Atlantic
Monthly.
[1913 Webster]

6. A player or singer who prepares to take the part of
another player in his absence; a substitute; -- used
especially of a person who resembles an actor and takes
the actor's place in scenes requiring special skills; as,
a stunt double.
[1913 Webster PJC]

7. Double beer; strong beer.
[1913 Webster]

8. (Eccl.) A feast in which the antiphon is doubled, hat is,
said twice, before and after the Psalms, instead of only
half being said, as in simple feasts. --Shipley.
[1913 Webster]

9. (Lawn Tennis) A game between two pairs of players; as, a
first prize for doubles.
[1913 Webster]

10. (Mus.) An old term for a variation, as in Bach's Suites.
[1913 Webster]


Double \Dou"ble\, adv.
Twice; doubly.
[1913 Webster]

I was double their age. --Swift.
[1913 Webster]


Double \Dou"ble\, v. i.
1. To be increased to twice the sum, number, quantity,
length, or value; to increase or grow to twice as much.
[1913 Webster]

'T is observed in particular nations, that within
the space of three hundred years, notwithstanding
all casualties, the number of men doubles. --T.
Burnet.
[1913 Webster]

2. To return upon one's track; to turn and go back over the
same ground, or in an opposite direction.
[1913 Webster]

Doubling and turning like a hunted hare. --Dryden.
[1913 Webster]

Doubling and doubling with laborious walk.
--Wordsworth.
[1913 Webster]

3. To play tricks; to use sleights; to play false.
[1913 Webster]

What penalty and danger you accrue,
If you be found to double. --J. Webster.
[1913 Webster]

4. (Print.) To set up a word or words a second time by
mistake; to make a doublet.
[1913 Webster]

{To double upon} (Mil.), to inclose between two fires.
[1913 Webster]


Double \Dou"ble\, v. t. [imp. & p. p. {Doubled}; p. pr. & vb. n.
{Doubling}.] [OE. doblen, dublen, doublen, F. doubler, fr. L.
duplare, fr. duplus. See {Double}, a.]
1. To increase by adding an equal number, quantity, length,
value, or the like; multiply by two; as, to double a sum
of money; to double a number, or length.
[1913 Webster]

Double six thousand, and then treble that. --Shak.
[1913 Webster]

2. To make of two thicknesses or folds by turning or bending
together in the middle; to fold one part upon another part
of; as, to double the leaf of a book, and the like; to
clinch, as the fist; -- often followed by up; as, to
double up a sheet of paper or cloth. --Prior.
[1913 Webster]

Then the old man
Was wroth, and doubled up his hands. --Tennyson.
[1913 Webster]

3. To be the double of; to exceed by twofold; to contain or
be worth twice as much as.
[1913 Webster]

Thus re["e]nforced, against the adverse fleet,
Still doubling ours, brave Rupert leads the way.
--Dryden.
[1913 Webster]

4. To pass around or by; to march or sail round, so as to
reverse the direction of motion.
[1913 Webster]

Sailing along the coast, the doubled the promontory
of Carthage. --Knolles.
[1913 Webster]

5. (Mil.) To unite, as ranks or files, so as to form one from
each two.
[1913 Webster]

420 Moby Thesaurus words for "double":
Doppelganger, Janus-like, Machiavellian, Photostat, Xerox,
aberrancy, aberration, accelerate, act for, actual thing, agent,
aggravate, alternate, alternative, ambidextrous, ambiguous,
amplify, analogy, artful, at full speed, at once, augment, average,
avoid, backup, beef up, beg, bend, bias, bifacial, bifold, biform,
bifurcated, bilateral, bilk, binary, binate, biparous, bipartisan,
bipartite, bisect, bivalent, blow up, branching off, briskly,
carbon copy, change, change places with, changeling,
circuitousness, circumvent, clone, co-walker, come again,
come back, come home, companion, comparison, complicate,
concentrate, condense, conduplicate, consolidate, coordinate, copy,
corner, counterfeit, counterpart, coupled, crafty, crease,
creasing, crimp, crisp, crook, crooked, crowd out, cunning, curve,
cut out, dead ringer, deceitful, declination, deepen, deflection,
departure, deputy, detour, deviance, deviancy, deviation,
deviousness, dichotomous, digression, discursion, dishonest,
disomatous, displace, ditch, ditto, divagation, divarication,
divergence, diversion, do a repeat, do again, do over, dog-ear,
dogleg, double back, double for, double over, double-dealing,
double-faced, double-minded, double-tongued, doubled, doubleganger,
doublehearted, doubling, drift, drifting, duadic, dual, dualistic,
dub, duck, dummy, dupe, duple, duplex, duplicate, duplicated,
duplication, duplicature, duplicitous, dyadic, echo, effigy, elude,
enfold, enhance, enlarge, equal, equivalent, errantry, ersatz,
escape, eschew, etheric double, evade, exacerbate,
exact counterpart, exact likeness, exaggerate, exchange, excursion,
excursus, exorbitation, facsimile, faithless, fake, false,
false-principled, falsehearted, fellow, fetch, fill in for,
fill-in, flection, flexure, flounce, flute, fold, fold over, frill,
gather, geminate, geminated, get around, get away from, get out of,
ghost, ghostwrite, ghostwriter, go back, go home, hairpin, heat up,
hectograph, heighten, homograph, homonym, homophone, hop up,
hot up, hypocritical, icon, idem, identical, identical same, idol,
image, imitate, imitation, immediately, increase, indirection,
infold, ingeminate, insincere, intensify, interfold, jazz up,
key up, lap over, lapel, lappet, likeness, living image,
living picture, locum tenens, magnify, make complex, makeshift,
manifold, match, matched, mate, metaphor, metonymy, microcopy,
microfilm, middle, mimeo, mimeograph, miniature, mirror image,
mirroring, model, multigraph, multiply by two, next best thing,
no other, none other, obliquity, on the run, paired, parrot,
pererration, perfidious, personnel, phony, photograph, picture,
pinch hitter, pinch-hit, plagiarize, plait, plat, pleat, plica,
plicate, plication, plicature, ply, portrait, proxy, put back,
quadruplicate, quickly, quill, quote, rambling, ramify, reciprocal,
redo, redouble, reduplicate, reecho, reflection, regurgitate,
reincarnate, reinforce, relief, relieve, renew, repeat, repetition,
replace, replacement, replica, replicate, replication, represent,
representation, representative, reproduce, reproduction,
resemblance, reserves, return, revive, ringer, rubbing, ruche,
ruching, ruff, ruffle, say again, second, second string, secondary,
selfsame, semblance, shadow, shake, shake off, sharpen, sheer,
shift, shifting, shifting course, shifting path, shifty,
shuffle out of, shun, shy, sign, similitude, simulacrum, skew,
skirt, slant, slippery, soup up, spares, spell, spell off, spit,
spit and image, spitting image, stand in for, stand-in, stat,
step up, straying, strengthen, sub, subrogate, substituent,
substitute, substitute for, substitution, succedaneum, succeed,
supersede, superseder, supplant, supplanter, supplement, surrogate,
swap places with, sweep, swerve, swerving, swinging, symbol,
synecdoche, synonym, tack, the same, the same difference,
third string, token, trace, tracing, traitorous, transcribe,
treacherous, tricky, triple, triplicate, tuck, turn, turn back,
turn over, turning, twain, twice, twill, twin, twinned, twist, two,
two-faced, two-level, two-ply, two-sided, two-story, twofold,
understudy, understudy for, utility player, variation, veer,
veering, very image, very picture, very same, vicar,
vice-president, vice-regent, wandering, warp, whet, without delay,
wraith, yaw, zigzag



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