Outside: Prefix
The crossword clue "Outside: Prefix" is answered by ECTO, a 4-letter entry. Used 39 times across 26 distinct years; most recently in 2023; first recorded in 1963. It appears in 4 publications in the xd corpus. Every figure on this page comes from the collection data itself.
The answer
ECTO
4 letters. See every clue for this answer on the ECTO answer page.
Used 39 times across 26 distinct years; most recently in 2023; first recorded in 1963. It appears in 4 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.
- EXTRO (1 uses in xd)
Other clues for ECTO
Every other clue in this collection answered by ECTO, most used first.
- Prefix with plasm - used 80 times, most recently in 2026
- Outer: Prefix - used 63 times, most recently in 2026
- Outside (Pref.) - used 29 times, most recently in 2025
- Outside: Comb. form - used 27 times, most recently in 1998
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.
- Bone: Prefix - OSTE, used 156 times
- Prefix with dynamic - AERO, used 152 times
- Prefix meaning "against" - ANTI, used 121 times
- Within: Prefix - ENTO, used 121 times
- Prefix meaning "all" - OMNI, used 119 times
- Aviation prefix - AERO, used 101 times
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