Letter addenda
The crossword clue "Letter addenda" is answered by PSS, a 3-letter entry. Used 20 times across 20 distinct years; most recently in 2007. It appears in 9 publications in the xd corpus. Every figure on this page comes from the collection data itself, never from a guess.
The answer
PSS
3 letters. See every clue for this answer on the PSS answer page.
Used 20 times across 20 distinct years; most recently in 2007. It appears in 9 publications in the xd corpus. Frequency and last-seen figures come from the xd crossword corpus only.
Other answers for this clue
The same clue has also been answered these ways in the xd corpus. Answers inside this collection link to their own answer page.
- PPS (1 uses in xd)
Other clues for PSS
Every other clue in this collection answered by PSS, most used first.
- Ltr. addenda - used 33 times, most recently in 2025
- Ltr. afterthoughts - used 15 times, most recently in 2026
- Ltr. additions - used 14 times, most recently in 2021
- Letter addenda, for short - used 13 times, most recently in 2025
- Ltr. add-ons - used 13 times, most recently in 2023
- Letter afterthoughts - used 7 times, most recently in 2009
Related clues
Clues in this collection of the same answer length that share a word with this clue, or match its answer pattern when no word is shared. Most used first.
- Greek letter - ETA, used 512 times
- Greek letter - PSI, used 244 times
- Greek letter - RHO, used 240 times
- Greek letter - TAU, used 198 times
- Curvy letter - ESS, used 177 times
- Letter. - ESS, used 174 times
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