Enter a clue or pattern or both:
The Clue
Free spirit (4 letter answer)
The Answer
ONER
Tags
Notes
The answer ONER is very common and appears about once every 42 puzzles.
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It's unique
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He's unique, so to speak
Definition
ON as an adjective:
1. in operation or operational; "left the oven on"; "the switch is in the on position"
2. (of events) planned or scheduled; "the picnic is on, rain or shine"; "we have nothing on for Friday night"