# one-on-one

> English word · Adjective

## Definitions
1. Involving direct communication or competition between two people.
2. Involving one attacker and one defender.
3. bijective or injective

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/one-on-one