UV-blocking letters
The crossword clue "UV-blocking letters" is answered by SPF, a 3-letter entry. Used 15 times across 7 distinct years; most recently in 2026; first recorded in 2020. It appears in 7 publications in the xd corpus. Every figure on this page comes from the collection data itself, never from a guess.
The answer
SPF
3 letters. See every clue for this answer on the SPF answer page.
Used 15 times across 7 distinct years; most recently in 2026; first recorded in 2020. It appears in 7 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
- Sunblock letters - used 38 times, most recently in 2026
- Letters on a Coppertone bottle - used 26 times, most recently in 2026
- Beach lotion letters - used 21 times, most recently in 2025
- Block letters? - used 20 times, most recently in 2026
- Suntan lotion letters - used 20 times, most recently in 2026
- Letters on a sunscreen bottle - used 19 times, most recently in 2025
- Beach bottle letters - used 13 times, most recently in 2026
- Coppertone letters - used 13 times, most recently in 2026
- Sunscreen stat - used 12 times, most recently in 2026
- UV-blocking stat - used 12 times, most recently in 2026
- Sunblock stat - used 9 times, most recently in 2025
- Tanning lotion abbr. - used 8 times, most recently in 2018
- UV-blocking initials - used 8 times, most recently in 2026
- UV ray-blocking stat - used 8 times, most recently in 2021
- Beach lotion abbr. - used 6 times, most recently in 2026
- Sunscreen abbr. - used 6 times, most recently in 2017
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
Search the clue collection
Search by clue words or by answer, or type a pattern with the letters you have and a blank for each square you do not know. The characters _ ? . and - all work as blanks.