掛鉤 (gwaa3 ngau1) — (n) coupling; latch hook in Cantonese
gwaa˗₃掛ngauˉ¹鉤简 挂钩
Mandarin Pinyin: gua4 gou1
Meaning of 掛鉤
noun(n) coupling; latch hook
nounto establish contact with; to link up with; to get in touch with
noun(of trains, vehicles, etc.) to couple; to articulate