/ˈlu:sn ||; ˈlusṇ/verb[I,T] to become or make sth less tight (使)松开,放松,松弛 [T] to loosen your tie/belt 松开领带╱皮带Don't loosen your grip on the rope or you'll fall.抓紧绳子别松手,要不会掉下来的。loosen (sb/sth) up to relax or move more easily (使)放松,行动更灵活:
These exercises will help you to loosen up.这运动可帮你松弛下来。