Crossword Genius

Threesomes (5)

Ross

I believe the answer is:

trios

'threesomes' is the definition.
('trio' can be a synonym of 'threesome')

This is all the clue.

(Other definitions for trios that I've seen before include "Groups of three" , "Works for three players" .)

I've seen this clue in the Sydney Morning Herald, the Universal, the USA Today and the Newsday.
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