The most common and most likely answer to this crossword clue is the 4 letter word PAAR which also is the latest solution we found used in New York Times in 2020.
Jack who once hosted "The Tonight Show" crossword clue answers
Here's a list of possible crossword answers ranked by the most likely to least likely.
| Answer | Likelyness | Letters | 
|---|---|---|
| PAAR | 100 % | 4 | 
Words with a meaning similar to the clue: Jack who once hosted "The Tonight Show"
These words may or may not be a possible solution to this crosswords clue.- issue
 - allen
 - late
 - going
 - freeze
 - came
 - happened
 - are
 - meet
 - here
 - remain
 - rest
 
Crossword Answer definitions
More crossword clues leading to the same solutions
Here's a few more crossword clues - all leading to the identical solution