System starter
The crossword clue "System starter" is answered by ECO, a 3-letter entry. Used 49 times across 21 distinct years; most recently in 2025; first recorded in 1999. It appears in 12 publications in the xd corpus. Every figure on this page comes from the collection data itself.
The answer
ECO
3 letters. See every clue for this answer on the ECO answer page.
Used 49 times across 21 distinct years; most recently in 2025; first recorded in 1999. It appears in 12 publications in the xd corpus. Frequency and last-seen figures come from the xd crossword corpus only.
Other clues for ECO
Every other clue in this collection answered by ECO, most used first.
- Green prefix - used 431 times, most recently in 2026
- Author Umberto - used 184 times, most recently in 2026
- Earth-friendly prefix - used 181 times, most recently in 2026
- Environmental prefix - used 114 times, most recently in 2026
- ___-friendly - used 77 times, most recently in 2026
- "The Name of the Rose" author - used 77 times, most recently in 2025
- Prefix with friendly - used 72 times, most recently in 2025
- "Foucault's Pendulum" author - used 64 times, most recently in 2026
- Prefix with system - used 58 times, most recently in 2026
- Prefix with tourism - used 50 times, most recently in 2026
- Environmentalist's prefix - used 34 times, most recently in 2025
- Writer Umberto - used 33 times, most recently in 2026
- Friendly introduction? - used 32 times, most recently in 2026
- ___-friendly (green) - used 31 times, most recently in 2026
- Prefix with conscious - used 29 times, most recently in 2026
- Novelist Umberto - used 27 times, most recently in 2026
- "The Name of the Rose" author Umberto - used 27 times, most recently in 2025
- Environmentally friendly prefix - used 24 times, most recently in 2026
- Green start - used 24 times, most recently in 2026
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.
- Cycle starter - UNI, used 60 times
- Cycle starter - TRI, used 58 times
- Belief system - ISM, used 54 times
- Blood-typing system - ABO, used 53 times
- Center starter - EPI, used 44 times
- PC linking system - LAN, used 44 times
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