loos·en 
(lsən)
(lsən)v. loos·ened, loos·en·ing, loos·ens
v.tr.
1. To make looser or less tight: loosened his tie; loosened her grip on the rope.
2. To free from restraint, pressure, or strictness: loosened the requirements for graduation.
3. To free (the bowels) from constipation.
v.intr.
Phrasal Verb: To become loose or looser: My shoelace has loosened.
loosen up
1. To do stretches or light exercise before a more strenuous activity.
2. To become less strict or tense, as in one's demeanor; relax: always loosened up after he got home.
[Middle English lousnen, losnen, from losen, from los, loose; see LOOSE.]
- linebacking
- line breeding
- linecaster
- linecasting
- line cut
- line dance
- line dancer
- line drawing
- line drive
- line engraving
- Line Islands
- line item
- line-item veto
- lineman
- linen
- line of credit
- line officer
- line of force
- line of scrimmage
- line of sight
- lineolate
- line (one's) pockets
- line one's pockets
- line-out
- line pockets