1) Align 2) Aline 3) Houseclean 4) Neaten 5) Unbend 6) Uncurl 7) Untangle 8) Untwine 9) Untwist 10) Unweave 1) Change posture 2) Free 3) Loosen 4) Make straight 5) Make straight or straighter 6) Put in order 7) Relax 8) Release 9) Slang for to bribe 10) Straighten by unrolling 11) Straighten up or out 12) To become straight 13) To bribe or corrupt 14) To cause to become straight 15) To put in order 16) To sort 
• (v. t.) To make straight; to reduce from a crooked to a straight form. • (v. t.) To make right or correct; to reduce to order; as, to straighten one`s affairs; to straighten an account. • (v. t.) A variant of Straiten.
Straight'en transitive verb [ imperfect & past participle Straighted ; present participle & verbal noun Straighting .] 1. To make straight; to reduce from a crooked to a straight form. 2. To make right or correct; to redu...
Straighten is slang for repay money to someone.
[v] - straighten up or out 2. [v] - get up from a sitting or slouching position 3. [v] - make straight 4. [v] - make straight or straighter
to make or become straight in direction, form, position, character, conduct, condition, etc. (often fol. by up or out).