Outer-

The answer

EXO

3 letters. See every clue for this answer on the EXO answer page.

Used 6 times across 6 distinct years; most recently in 2022; first recorded in 1999. 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.

• EXTERNAL (10 uses in xd)
• SPACE (4 uses in xd)
• ECTAL (2 uses in xd)
• ECTO (1 uses in xd)

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: Prefix - used 40 times, most recently in 2026
• Outer (Pref.) - used 31 times, most recently in 2025
• Skeleton starter - used 14 times, most recently in 2019
• Prefix meaning "outer" - used 12 times, most recently in 2025
• Prefix with biology - used 9 times, most recently in 2015
• Prefix with thermal - used 8 times, most recently in 2024
• Skeleton opening - used 8 times, most recently in 2021
• Skeleton prefix - used 8 times, most recently in 2023
• Skeletal opening? - used 7 times, most recently in 2017
• Prefix for skeleton - used 6 times, most recently in 2020

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.

• Outer edge - RIM, used 48 times
• Outer: Prefix - ECT, used 47 times
• Outer: Pref. - ECT, used 13 times
• Outer limit - RIM, used 9 times
• "Outer" word form - ECT, used 8 times

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