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back
- pronunciation:
- baek
- parts of speech:
- noun, transitive verb, intransitive verb, adjective, adverb
- phrases:
- behind one's back, turn one's back on, back out of, back and forth, back up
- features:
- Word Explorer
| part of speech: |
noun |
| definition 1: |
the part of a human or other vertebrate that is on the opposite side from the chest and abdomen and between the neck and the tailbone.
- similar words:
- posterior
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| definition 2: |
the backbone; spine.
She felt a shiver down her back.- synonyms:
- backbone, rachis, spinal column, spine
- similar words:
- chine, vertebrae
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| definition 3: |
the part or side that is opposite the front; reverse; rear.
She found the blanket in the back of the car.Put your name on the back of this paper.
- synonyms:
- backside, rear, reverse
- antonyms:
- face, front
- similar words:
- rear end, stern
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| definition 4: |
a support at the rear.
the back of the chair- similar words:
- backing, backrest, support
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| phrase: |
behind one's back |
| phrase: |
turn one's back on |
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| part of speech: |
transitive verb |
| inflections: |
backed, backing, backs |
| definition 1: |
to move (something) in the reverse or opposite direction; cause to go backward.
- synonyms:
- reverse
- antonyms:
- advance
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| definition 2: |
to formally give support to.
The president will back that governor in the next election.- synonyms:
- endorse
- antonyms:
- oppose
- similar words:
- advocate, aid, assist, champion, help, patronize, promote, sanction, sponsor, support, sustain, underwrite, uphold
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| definition 3: |
to substantiate with facts or logic (often fol. by up).
He was not able to back up his claim that the earth is flat.- synonyms:
- corroborate, substantiate, validate
- similar words:
- confirm, establish, justify, sustain, vouch for
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| definition 4: |
to bet on the success of.
- synonyms:
- bet on
- similar words:
- stake
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| related words: |
adopt, capitalize, commend, forward, loan, recommend, start, stick by, sympathize, urge |
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| part of speech: |
intransitive verb |
| definition: |
to move backward or in the reverse direction (often fol. by up).
- synonyms:
- retreat, reverse
- antonyms:
- advance
- similar words:
- back-pedal, backtrack, recede, withdraw
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| related words: |
turn |
| phrase: |
back out of |
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| part of speech: |
adjective |
| definition 1: |
located in or near the rear of something else.
The children always ride in the back seat of the car.- synonyms:
- rear
- antonyms:
- front
- similar words:
- aft, dorsal, hind, posterior, reverse, tail, wrong
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| definition 2: |
owed from an earlier time; overdue.
back pay- synonyms:
- overdue
- similar words:
- late, tardy
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| definition 3: |
not current; old.
back issues of a newspaper- antonyms:
- future
- similar words:
- expired, former, old, out-of-date, past
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| phrase: |
back and forth |
| phrase: |
back up |
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| part of speech: |
adverb |
| definition 1: |
toward the direction that is opposite from forward; backward; away.
The police ordered the crowd to move back. |
| definition 2: |
in the direction of an earlier time or a former place or position.
She thought back to happier times when she was in school.He'd reached the bus stop when he realized he had to go back home for his wallet.She put the book back on the shelf. |
| definition 3: |
in return or in reply.
She left me a message when she phoned, but I forgot to call her back.He hit me, and I hit him back. |
| derivation: |
backless (adj.) |
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