Synonyms of straighten in English:

straighten


See definition of straighten

verb

1‘Rory straightened his tie’

SYNONYMS
make straight, align
adjust, arrange, rearrange, tidy, make tidy, neaten, spruce up
uncoil, unkink, uncurl

2‘he didn't know how to straighten things out with Viola’

SYNONYMS
put right, set right, sort out, iron out, clear up, settle, resolve, find a solution to, put in order, tidy up, regulate, regularize, rectify, repair, remedy
disentangle, unravel, unsnarl, untangle
informal patch up
ANTONYMS

confuse, complicate

3‘he straightened up, using the bedside table for support’

SYNONYMS
stand up, stand up straight, stand upright, straighten one's back
ANTONYMS

bend over