good as one's word

Adjective

not-comparable

(simile) Faithful to a promise one has made.

Japanese Meaning

約束を守る、誠実に約束を実行する

To be good as one's word, you must keep every promise you make, even when it's difficult.

約束を守る人であるためには、たとえ困難でも自分がした約束はすべて守らなければなりません。

Sense（1）

(simile) Faithful to a promise one has made.

He said he'd pay me back this week, and he was as good as his word.