- moving, or allowing movement in one direction only: a one-way street.
- valid for travel in one direction only: a one-way ticket.
- without a reciprocal feeling, responsibility, relationship, etc.: It's a one-way friendship.
- not intended for return to a seller, dealer, etc., for reuse; disposable: one-way bottles.
- moving or allowing travel in one direction only
- entailing no reciprocal obligation, action, etc
