#1
straighten v. [
unbend] straighten up or out; make straight
. wn #2
straighten v. [
straighten out] make straight
. wn #3
straighten v. get up from a sitting or slouching position; "The students straightened when the teacher entered"
. wn #4
straighten v. [
tidy, tidy up, clean up, neaten, straighten out, square away] put (things or places) in order; "Tidy up your room!"
. wn #5
straighten v. [
roll out] straighten by unrolling; "roll out the big map"
. wn