The most common and most likely answer to this crossword clue is the 6 letter word TILDES which also is the latest solution we found used in Washington Post in 2011.
Iberian letter addenda crossword clue answers
Here's a list of possible crossword answers ranked by the most likely to least likely.
| Answer | Likelyness | Letters | 
|---|---|---|
| TILDES | 100 % | 6 | 
Words with a meaning similar to the clue: Iberian letter addenda
These words may or may not be a possible solution to this crosswords clue.- pss
 - addendum
 - addition
 - additions
 - documentation
 - roots
 - ell
 - epithesis
 - index
 - item
 - note
 - paragoge
 
Crossword Answer definitions
TILDES noun- The grapheme of character ~.
 - The character used to represent negation, usually ~ or ¬.
 
More crossword clues leading to the same solutions
Here's a few more crossword clues - all leading to the identical solution