挂钩
guàgōu
to couple, to link
HSK 79
Traditional掛鉤
Additional Dictionary Meanings
to couple; to link; to hook together(fig.) (preceded by 與|与[yu3] + {entity}) to establish contact (with {entity}); (Tw) to collude (with {entity})(fig.) to link (marketing efforts with production etc); to peg (welfare payments to inflation etc); to tie (remuneration to performance etc)hook (on which to hang sth); latch hook; coupling