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What does knock up mean?

Looking for the meaning or definition of the word knock up? Here's what it means.

Verb
  1. (colloquial) To put together, fabricate, or assemble, particularly if done hastily or temporarily. See also knock together. [from 16th c.]
  2. (Britain) To awaken (someone) as by knocking at the door; rouse; call; summon; also, to go door-to-door on election day to persuade a candidate's supporters to go to the polling station and vote. See also knocker up. [from 17th c.]
  3. (dated) To exhaust; wear out; tire out; to fatigue until unable to do more. [from 18th c.]
  4. (dated, intransitive) To become exhausted or worn out; to fail of strength; to become wearied, as with labor; to give out. [from 18th c.]
  5. (slang) To impregnate, especially out of wedlock. See knocked up. [from 19th c.]
  6. (racket sports, intransitive) To gently hit the ball back and forth before a tennis match, as practice or warm-up, and to gauge the state of the playing surface, lighting, etc. See knock-up. [from 19th c.]
  7. (bookbinding) To make even at the edges, or to shape into book form.
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