(one's) word is (one's) bond formal phrase figurative
Used to describe someone that always keeps their promises.
I promise that I'll be here early tomorrow. My word is my bond.
I swear, on my honour, to keep your secret. My word is my bond.
You can trust her implicitly. Her word is her bond.
Used to say that what you're saying is true, or that you'll do what you promise .
To do what you promised to do or what people expect you to do
Promises do not guarantee that something will happen.
If you give someone your word, you promise something to them.
At a much higher level than other people or things
Peter is head and shoulders above the other contestants in the competition.