#1 straighten out v. settle or put right; "we need to iron out our disagreements". wn
#2 straighten out v. extricate from entanglement; "Can you disentangle the cord?". wn
#3 straighten out v. change for the better; "The lazy student promised to reform"; "the habitual cheater finally saw the light". wn
#4 straighten out v. make straight. wn
#5 straighten out v. make free from confusion or ambiguity; make clear; "Could you clarify these remarks?"; "Clear up the question of who is at fault". wn
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