single-handedly
adverb/ˌsɪŋɡl ˈhændɪdli/
/ˌsɪŋɡl ˈhændɪdli/
- on your own with nobody helping you
- She single-handedly saved the town from disaster.
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single-handedly
Definition of single-handedly adverb from the Oxford Advanced Learner's Dictionary