Outer: Prefix
The crossword clue "Outer: Prefix" is answered by EXO, a 3-letter entry. Used 40 times across 30 distinct years; most recently in 2026; first recorded in 1965. It appears in 12 publications in the xd corpus. Every figure on this page comes from the collection data itself.
The answer
EXO
3 letters. See every clue for this answer on the EXO answer page.
Used 40 times across 30 distinct years; most recently in 2026; first recorded in 1965. 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 EXO
Every other clue in this collection answered by EXO, most used first.
- Prefix with skeleton - used 82 times, most recently in 2026
- Outside: Prefix - used 41 times, most recently in 2020
- Outer (Pref.) - used 31 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.
- Green prefix - ECO, used 431 times
- Numerical prefix - TRI, used 247 times
- Earth-friendly prefix - ECO, used 181 times
- Prefix with center - EPI, used 134 times
- Equal: Prefix - ISO, used 123 times
- Recent: Prefix - NEO, used 120 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.