1. (noun)companion, comrade, fellow, familiar, associate a friend who is frequently in the company of another "drinking companions"; "comrades in arms"
2. (noun)companion, fellow traveler, fellow traveller a traveler who accompanies you
3. (verb)companion one paid to accompany or assist or live with another
4. (verb)company, companion, accompany, keep company be a companion to somebody
Definition of 'companion' 
