a traveler who accompanies you
"She packed her bags and invited an old friend to be her companion on the journey across Europe."
one paid to accompany or assist or live with another
"The wealthy traveler hired a companion to manage his luggage and guide him through foreign cities during his journey."
A friend, acquaintance, or partner; someone with whom one spends time or accompanies
"After years of traveling alone, she finally found a companion to share her adventures and quiet evenings."
In plain English: A companion is someone who stays with you and helps make your time together more enjoyable.
"She asked her dog to be her constant companion during long walks in the park."
Usage: Use the noun form when referring to a person who keeps you company as a friend or travel partner, while reserving the verb for actions like accompanying someone else. Distinguish this from "companionable," which describes an atmosphere rather than a specific individual.
be a companion to somebody
"The new puppy quickly became a loyal companion to the elderly man living alone."
To be a companion to; to attend on; to accompany.
"She took her elderly neighbor for a daily walk, serving as a faithful companion throughout their journey."
In plain English: To accompany someone by staying with them for support or company.
"The travel guidebook will companion you with tips and maps throughout your journey across Europe."
The English word companion comes from the Old French compaignon and originally meant "one who shares bread." This literal sense of eating together evolved to describe a general friend or associate, reflecting how shared meals often formed the basis for lasting friendships.