One who accompanies or is in company with another for a longer or shorter period, either from choice or casually; one who is much in the company of, or is associated with, another or others; an associate; a comrade; a consort; a partner.
A knight of the lowest rank in certain orders; as, a companion of the Bath.
A fellow; -- in contempt.
A skylight on an upper deck with frames and sashes of various shapes, to admit light to a cabin or lower deck.
A wooden hood or penthouse covering the companion way; a companion hatch.
I have never found a companion that was so companionable as solitude. We are for the most part more lonely when we go abroad among men than when we stay in our chambers. A man thinking or working is always alone, let him be where he will. Henry David Thoreau
For years my wedding ring has done its job. It has led me not into temptation. It has reminded my husband numerous times at parties that it's time to go home. It has been a source of relief to a dinner companion. It has been a status symbol in the maternity ward. Erma Bombeck
Guilt is perhaps the most painful companion of death. Coco Chanel
I love to be alone. I never found the companion that was so companionable as solitude. Henry David Thoreau
companion in Afrikaans is makker
companion in Dutch is maat, kameraad, kornuit, makker
companion in French is compagne, camarade
companion in Latin is comes comitis, socius-i
companion in Portuguese is companheiro