· straighten up or out; make straight
Synonym(s): unbend
Hypernym(s): change_posture
Antonym(s): bend
· make straight
Synonym(s): straighten_out
Hypernym(s): change, alter, modify
· get up from a sitting or slouching position; "The students straightened when the teacher entered"
Hypernym(s): change_posture
· put (things or places) in order; "Tidy up your room!"
Synonym(s): tidy, tidy_up, clean_up, neaten, straighten_out, square_away
Hypernym(s): order
· straighten by unrolling; "roll out the big map"
Synonym(s): roll_out
Hypernym(s): unwind, disentangle
· make straight or straighter; "Straighten this post"; "straighten hair"