Vow

保證 /保证

bǎozhèng

(a declaration or assertion)

誓約 /誓约

shìyuē

(a solemn promise to perform some act, or behave in a specified manner)

誓言

shìyán

(a solemn promise to perform some act, or behave in a specified manner)

宣誓

xuānshì

(to declare publicly that one made a vow)

發誓 /发誓

fāshì

(to make a vow)