What is the correct punctuation for the phrase: one size fits all?
I have seen two variants:
- 'one size fits all', and
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If the phrase is used as an adjective (which it usually is), then hyphenate it:
The phrase could be used as an independent clause, however, with "one size" being the subject:
So in all but the last case, which I imagine is pretty rare, include the hyphens.