Phrase
word of honor
noun
承诺；诺言；保证
word of honor
- 1.
a promise
承诺,诺言
承诺,诺言；诺言
In use
He gave me his word of honor that he would return the book by Friday.
She kept her word of honor and never told anyone my secret.
I have your word of honor, so I trust you completely.
give (sb) one's word of honor
用于表达郑重承诺。
He gave me his word of honor that he would return.
他向我郑重承诺他会回来。
keep one's word of honor
She kept her word of honor and finished the project on time.
她信守诺言，按时完成了项目。
on one's word of honor
用于强调保证真实性。
On my word of honor, I will not reveal your secret.
我以名誉担保，不会泄露你的秘密。
Common mistakes
He gave me his honor word.He gave me his word of honor.
汉语表达常将修饰语前置，而英语固定短语 'word of honor' 中 'of honor' 是后置定语，顺序不能颠倒。
I give you word of honor.I give you my word of honor.
固定短语 'word of honor' 通常与所有格代词连用（如 my, his, your），表示某人的承诺，缺少所有格会导致表达不完整。
Connections
Dictionary facts from ECDICT, WIKTIONARY.