The most common and most likely answer to this crossword clue is the 6 letter word SUFFIX which also is the latest solution we found used in New York Times in 2012.
Follow-up letters? crossword clue answers
Here's a list of possible crossword answers ranked by the most likely to least likely.
| Answer | Likelyness | Letters | 
|---|---|---|
| SUFFIX | 100 % | 6 | 
Words with a meaning similar to the clue: Follow-up letters?
These words may or may not be a possible solution to this crosswords clue.- suffix
 - monitoring
 - ese
 - follow-up
 - trace
 - address
 - mri
 - line
 - call
 - requested
 - rom
 - traces
 
Crossword Answer definitions
SUFFIX noun- (grammar) A morpheme added at the end of a word to modify the word's meaning.
 - A subscript.
 - A final segment of a string of characters.
 
- To append (something) to the end of something else.
 
More crossword clues leading to the same solutions
Here's a few more crossword clues - all leading to the identical solution