30 heads up synonyms include Alert, Warning, Notice, Caution, Tip-off, Forewarning, Signal, Advice, Notification, and Advisory. Heads up is a verb, and its antonyms are warning off and ignorance. Here are some additional synonyms for "heads up" with example sentences.
30 other ways to say heads up.
A little heads up goes a long way.
Can you give me a heads up next time?
heads up!
I wanted to give you a heads up before you hear it elsewhere.
Just a heads up—there's a test tomorrow.
Next time, a heads up would be nice.
She gave me a heads up about the meeting.
Thanks for the heads up about the traffic.
We got a heads up that the event is postponed.