Solitary - Idioms by The Free Dictionary
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Related to solitary: solitaire
, card games
A type of wasp that does not live in a social colony. My sister is an entomologist currently studying the behavior of solitary wasps.
tread a difficult, solitary, etc. ˈpath choose and follow a particular way of life, way of doing something, etc: A restaurant has to tread the tricky path between maintaining quality and keeping prices down.