Block letters?
The crossword clue "Block letters?" is answered by SPF, a 3-letter entry. Used 20 times across 13 distinct years; most recently in 2026; first recorded in 2008. It appears in 12 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 20 times across 13 distinct years; most recently in 2026; first recorded in 2008. It appears in 12 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.
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
- Suntan lotion letters - used 20 times, most recently in 2026
- Letters on a sunscreen bottle - used 19 times, most recently in 2025
- UV-blocking letters - used 15 times, most recently in 2026
- 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
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