Letter after upsilon
The crossword clue "Letter after upsilon" is answered by PHI, a 3-letter entry. Used 76 times across 23 distinct years; most recently in 2026. It appears in 17 publications in the xd corpus. Every figure on this page comes from the pilot data itself.
The answer
PHI
3 letters. See every clue for this answer on the PHI answer page.
Used 76 times across 23 distinct years; most recently in 2026. It appears in 17 publications in the xd corpus. Frequency and last-seen figures come from the xd crossword corpus only.
Other clues for PHI
Every other clue in this pilot answered by PHI, most used first.
- ___ Beta Kappa - used 266 times, most recently in 2026
Related clues
Pilot clues 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.
- Curvy letter - ESS, used 177 times
- Seventh Greek letter - ETA, used 165 times
- Letter after sigma - TAU, used 161 times
- Letter after pi - RHO, used 139 times
- Letter before omega - PSI, used 132 times
- Letter before tee - ESS, used 124 times
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