seatmate

[ seet-meyt ]

noun
  1. a person who shares a seat or occupies the seat next to oneself on a bus, plane, etc.

Origin of seatmate

1
An Americanism dating back to 1855–60; seat + mate1

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use seatmate in a sentence