Main entry: companion
Definition: one paid to accompany or assist or live with another
Main entry: companion, comrade, familiar, fellow, associate
Definition: a friend who is frequently in the company of another
Usage: drinking companions; comrades in arms
Main entry: companion, fellow traveler, fellow traveller
Definition: a traveler who accompanies you
Main entry: accompany, companion, company, keep company
Definition: be a companion to somebody