背 約 bèi yuē : break an agreement; go back on one's word; fail to keep one's promise

承 諾 chéng nuò : effort; undertaking; promise (to do something)

答 應 dā ying : reply; promise

踐 [践] jiàn : fulfill (a promise); tread; walk

Big5: , Unicode: 8e10 (踐),
Links: MT, Cantonese, Ld, Chinese Language

諾 [诺] nuò : to promise; to yes

Big5: , Unicode: 8afe (諾),
Links: MT, Cantonese, Ld, Chinese Language

誓 不 反 悔 shì bù fǎn huǐ : to vow not to break one's promise

誓 言 shì yán : oath; promise; pledge

妥 協 tuǒ xié : compromise

違 約 wéi yuē : to break a promise; to violate an agreement

信 守 xìn shǒu : abide by; keep (promises, etc)

約 定 yuē dìng : engage; promise; make an appointment

允 諾 yǔn nuò : to promise; to consent (to do sth)