verb · to link, tie, or peg variables together, such as remuneration to performance or welfare to inflation

工资应该与物价指数挂钩。

verb · to act in collusion with someone, often for illegal or unethical purposes

当地一些官员与黑势力挂钩。

verb · to establish a connection, liaison, or contact with another entity

这家科研机构已经与生产单位挂钩了。

noun · a physical hook, latch, or coupling device used for hanging things or connecting parts

门后钉着一个挂钩，可以挂大衣。

verb · to couple or hook items together physically

把这两节车厢挂钩。