Sunblock letters
The crossword clue "Sunblock letters" is answered by SPF, a 3-letter entry. Used 38 times across 21 distinct years; most recently in 2026. It appears in 15 publications in the xd corpus. Every figure on this page comes from the collection data itself.
The answer
SPF
3 letters. See every clue for this answer on the SPF answer page.
Used 38 times across 21 distinct years; most recently in 2026. It appears in 15 publications in the xd corpus. Frequency and last-seen figures come from the xd crossword corpus only.
Other clues for SPF
Every other clue in this collection answered by SPF, most used first.
- Tanning lotion letters - used 55 times, most recently in 2026
- Lotion letters - used 42 times, most recently in 2026
- Sunscreen letters - used 42 times, most recently in 2025
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.
- Genetic letters - RNA, used 265 times
- Debtor's letters - IOU, used 249 times
- Explosive letters - TNT, used 225 times
- Letters before an alias - AKA, used 194 times
- Alias letters - AKA, used 146 times
- Battleship letters - USS, used 124 times
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