Proof ender
The crossword clue "Proof ender" is answered by QED, a 3-letter entry. Used 10 times across 7 distinct years; most recently in 2022. 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
QED
3 letters. See every clue for this answer on the QED answer page.
Used 10 times across 7 distinct years; most recently in 2022. It appears in 7 publications in the xd corpus. Frequency and last-seen figures come from the xd crossword corpus only.
Other clues for QED
Every other clue in this collection answered by QED, most used first.
- Proof letters - used 78 times, most recently in 2025
- Proof-ending letters - used 25 times, most recently in 2024
- Proof abbr. - used 22 times, most recently in 2015
- Letters after a proof - used 19 times, most recently in 2008
- Proof-ending abbr. - used 13 times, most recently in 2026
- Letters at the end of a proof - used 9 times, most recently in 2026
- Logical conclusion - used 9 times, most recently in 2019
- Math-proof letters - used 9 times, most recently in 2010
- End of a proof - used 8 times, most recently in 2026
- End-of-proof letters - used 8 times, most recently in 2025
- Proof ending - used 8 times, most recently in 2018
- Proof finale - used 8 times, most recently in 2025
- Math class 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.
- Fire proof? - ASH, used 91 times
- College URL ender - EDU, used 78 times
- List ender - ETC, used 65 times
- East ender? - ERN, used 47 times
- West ender? - ERN, used 38 times
- Alphabet ender - ZEE, used 26 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.