adjective, verb · not tight or firm; to loosen or slacken

螺丝钉松了，需要拧紧。

verb · to ease tension or pressure; to make rules or restrictions less strict

听音乐可以帮助你松一松紧绷的神经。

noun · a dry, fluffy food product made from shredded seasoned meat or fish

这个面包里夹了很多肉松。