1. An insulated box used for keeping food and drink cold
   - coolbox [Brit], cooler, Esky [Austral], chilly bin [NZ]

Derived forms: cool bags

• one-millionth
• one-night stand
• one-ninth
• one-off
• one-on-one
• one-party
• one-person
• one-piece
• one-quadrillionth
• one-quarter
• one-quintillionth
• one-seed
• one-seeded
• one-seventh
• one-sided
• one-sidedly
• one-sidedness
• one-sixteenth
• one-sixth
• one-sixtieth
• one-sixty-fourth
• one-size-fits-all
• one-spot
• one-step
• one-ten-thousandth