Synonyms of 'crouch'
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When you bow to someone, you briefly bend your body towards them as a formal way of greeting them or showing respect.
He bowed slightly before taking her bag.
If you duck, you move your head or the top half of your body quickly downwards to avoid something that might hit you, or to avoid being seen.
He ducked in time to save his head from the blow.
Video: pronunciation of 'crouch'
Thesaurus for crouch from the Collins English Thesaurus
If you are crouching , your legs are bent under you so that you are close to the ground and leaning forward slightly .