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to flex

to flex

27 4.1
To tighten a muscle to show strength or while exercising
  • verb
  • /flɛks/
translation icon : flexionar
  • He flexes his muscles and then the girls swoon.
  • flex your muscles
  • flex your arm
  • begin to flex

It's like a muscle you flex and then you can use it when you need it.

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Examples

  • Now flex your toes.

  • Can you flex your fingers?

  • All right, flex that arm.

  • So the more you flex it, the stronger.

  • Then you flex certain parts of the body for stability.

  • - Just flex your wrist.

  • Flex your face one more time.

  • Sometimes I'll stand in front of the mirror in my room and flex my muscles.

    Fiction book (1993)
  • What do you think all these muscles are for?" He flexed his biceps and grinned at her.

    Fiction book (1995)
  • To demonstrate his strength, he decided to flex his biceps in front of the mirror.

Antonyms

1.0

To feel less nervous and more calm

Idioms

8 6.8

To show power to frighten or control others

Compounds

flex harrow
  • Specialized
8.6

A farm tool with spring teeth on a flexible frame that removes weeds from fields

How Tense

to clench
70 3.5
to flex
27 4.1
to contract
52 3.0
to twitch
66 2.8

Surface Forms

flex infinitive
flexed past
flexed past participle
flexing present participle
flexes third person singular

Etymology

Flex (to tighten a muscle) comes from the same Latin root flectere 'to bend', and people used the word for muscles because tensing makes a body part change shape. So to flex a muscle is to tighten it to show strength or for exercise.