签字 /qiānzì/ angolul

sign [signed, signing, signs]▼(to make (a document) official by writing one's signature)
verb
[UK: saɪn] [US: ˈsaɪn]

signature [signatures]▼(person’s autograph name)
noun
[UK: ˈsɪɡ.nə.tʃə(r)] [US: ˈsɪɡ.nə.tʃər]