The most common and most likely answer to this crossword clue is the 4 letter word WARN which also is the latest solution we found used in USA Today in 2018.
Yell "Heads up!" to, say crossword clue answers
Here's a list of possible crossword answers ranked by the most likely to least likely.
| Answer | Likelyness | Letters | 
|---|---|---|
| WARN | 100 % | 4 | 
Words with a meaning similar to the clue: Yell "Heads up!" to, say
These words may or may not be a possible solution to this crosswords clue.- alert
 - fore
 - warn
 - get
 - mind
 - recall
 - catch
 - notice
 - hark
 - timber
 - focus
 - call
 
Crossword Answer definitions
WARN verb- To make (someone) aware of (something impending); especially:
 - To caution or admonish (someone) against unwise or unacceptable behaviour.
 - (chiefly with "off", "away", and similar words) To advise or order to go or stay away.
 - To give warning.
 
More crossword clues leading to the same solutions
Here's a few more crossword clues - all leading to the identical solution