to not do something immediately:
[ + -ing verb ] Let's hold off making a decision until next week.
US They've decided to hold off on buying a car until they're both working.
If rain or a storm holds off, it does not start immediately.
(Cambridge Advanced Learner's Dictionary & Thesaurus からの hold off の定義 © Cambridge University Press)
to wait for a period of time before doing something:
hold off on sth Holding off on the product release meant missing sales targets for the year.
Let's hold off placing the order until we've got more information.
(Cambridge ビジネス英語辞典 からの hold off の定義 © Cambridge University Press)
- Cambridge Dictionary