adj.

1. Identically copied from an original.
2. Existing or growing in two corresponding parts; double.
3. Denoting a manner of play in cards in which partnerships or teams play the same deals and compare scores at the end: duplicate bridge.

n.

1. An identical copy; a facsimile.
2. One that corresponds exactly to another, especially an original.
3. Games. A card game in which partnerships or teams play the same deals and compare scores at the end.

v., -cat·ed, -cat·ing, -cates. (-kāt')

v.tr.

1. To make an exact copy of.
2. To make twofold; double.
3. To make or perform again; repeat: a hard feat to duplicate.

v.intr.

To become duplicate.

[Middle English, from Latin duplicātus, past participle of duplicāre, to double, from duplex, duplic-, twofold.]

duplicable du'pli·ca·ble or du'pli·cat'a·ble (-kā'tə-bəl) adj.
duplicately du'pli·cate·ly adv.
duplicative du'pli·ca'tive adj.
duplicatory du'pli·ca·to'ry (-kĭ-tôr'ē, -tōr'ē) adj.

In general: copy or reproduction of a magnetic tape, printing plate film, or photographic negative also called dub if a film duplicate.

Computer file maintenance: two or more records on a file that can be combined into one record according to the matching logic being used; also called dupe.

Alike, equivalent.

adjective

Composed of two parts or things: biform, binary, double, dual, duple, duplex, geminate, twofold. See part/whole.

noun

1. Something closely resembling another: carbon copy, copy, facsimile, image, likeness, reduplication, replica, replication, reproduction, simulacrum. Archaic simulacre. Law counterpart. See same/different/compare.
2. One exactly resembling another: double, image, picture, portrait, spitting image. Slang ringer. See same/different/compare.
3. One of a matched pair of things: companion, counterpart, double, fellow, match, mate, twin. See same/different/compare.

verb

1. To make a copy of: copy, imitate, replicate, reproduce, simulate. See same/different/compare.
2. To make or become twice as great: double, geminate, redouble, twin. See big/small/amount, increase/decrease.
3. To do or perform (an act) again: redo, repeat. See repetition.

adj

Definition: matching
Antonyms: different, unmatching

n

Definition: copy, reproduction
Antonyms: archetype, model, original, prototype

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IN BRIEF: A thing exactly like another. Also: to make an exact copy.

Jenny went to the hardware store to make a duplicate of her house key.

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Dansk (Danish)
adj. - kopieret, dobbelt, duplikat-, tvilling-, fordoblet
n. - kopi, duplikat, pantelånerkvittering
v. tr. - fordoble, duplikere, kopiere, gentage
v. intr. - være kopi

idioms:

• duplicate ratio    forhold mellem to tals kvadrater

Nederlands (Dutch)
vermenigvuldigen, Kopiëren, verdubbelen, herhalen, duplicaat, duplo, dubbel, gelijkluidend

Français (French)
adj. - double, en double, supplémentaire, en duplicata
n. - double, (Jur) duplicata, ampliation, double (de clé, de chaise), en deux exemplaires, (Jur) en/par duplicata
v. tr. - doubler, faire un double de, copier (une cassette, une vidéo), faire un contretype de (film), polycopier, répéter exactement
v. intr. - (Biol) se dédoubler

idioms:

• duplicate ratio    (Math) rapport des carrés de deux nombres

Deutsch (German)
n. - Duplikat, Abschrift, Zweitausfertigung, Kopie
v. - verdoppeln, vervielfachen, nachmachen
adj. - identisch, Doppel-

idioms:

• duplicate ratio    doppeltes Verhältnis

Ελληνική (Greek)
n. - ακριβές αντίγραφο, διπλότυπο
v. - διπλασιάζω, κάνω αντίγραφο ή απομίμηση, αντιγράφω
adj. - ακριβές αντίγραφο, διπλότυπο, διπλός, διπλάσιος

idioms:

• duplicate ratio    (μαθ.) λόγος δύο τετραγώνων

Italiano (Italian)
raddoppiare, duplicato, identico

idioms:

• duplicate ratio    proporzione dei quadrati

Português (Portuguese)
n. - duplicata (f)
v. - duplicar
adj. - duplicado

idioms:

• duplicate ratio    razão (f) geométrica (Mat.)

Русский (Russian)
удваивать, дубликат, двойной

idioms:

• duplicate ratio    пропорция квадратов двух номеров

Español (Spanish)
adj. - duplicado
n. - duplicación, reproducción con multicopista, duplicador, en duplicado, duplicado
v. tr. - duplicar, doblar, reproducir
v. intr. - duplicarse

idioms:

• duplicate ratio    multiplicación de los cuadrados de dos números

Svenska (Swedish)
n. - dublett, kopia, pantkvitto
v. - fördubbla, ta kopia
adj. - dubbel

中文（简体） (Chinese (Simplified))
复制的, 二重的, 副本, 复制品, 复本, 复制, 影印, 拷贝, 复写, 重复, 被复制, 加倍, 成双

idioms:

• duplicate ratio    二乘比

中文（繁體） (Chinese (Traditional))
adj. - 複製的, 二重的
n. - 副本, 複製品, 複本
v. tr. - 複製, 影印, 拷貝, 複寫, 重復
v. intr. - 被複製, 重複, 加倍, 成雙

idioms:

• duplicate ratio    二乘比

한국어 (Korean)
adj. - 두 배의, 동일한, 복사의
n. - 복사, 전당표, 동의어
v. tr. - 두 배로 하다, 복제하다
v. intr. - 중복되다

日本語 (Japanese)
adj. - 複製の, そっくり同じの, 二重の
n. - 複製, 写し, そっくり同じ物, 副本
v. - 複写する, 写しをとる, 二重にする, 2度繰り返す

idioms:

• duplicate ratio    二乗比, 二重比

العربيه (Arabic)
‏(الاسم) نسختين متطابقتين (فعل) يضاعف, ينسخ, يستخرج نسخه طبق الأصل, يكرر (صفه) مطابق‏

עברית (Hebrew)
adj. - ‮כפול, זהה‬
n. - ‮עותק, העתק, כפולה‬
v. tr. - ‮שיכפל, עשה העתק‬
v. intr. - ‮הועתק, עותק, העתק, כפולה, כפול, זהה, שיכפל, עשה העתק‬

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duplicate title	Duplicate Personal Checks