one-on-one, man-to-man - being a system of play in which an individual defensive player guards an individual offensive player; "one-on-one defense" Antonym:common (indirect, via individual)
Adverbialone-on-one has 1 sense
one-on-one, person-to-person - (of two persons) in direct encounter; "preferred to settle the matter one-on-one"; "interviewed her person-to-person"