- Boxing a sequence of two quick punches, esp. a jab with the left hand followed at once by a hard blow with the right
- any sequence of two related actions for a specific result
See one-two (punch) in American Heritage Dictionary 4
- A combination of two blows delivered in rapid succession in boxing, especially a left lead followed by a right cross.
- Informal An especially forceful or effective combination or sequence of two things.
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