companion

/kəmˈpænjən/noun

A person or animal that spends time with you or travels alongside you; a friend or partner.

Example sentence

“Her cat has been a loyal companion since she moved to the city.”

Related to 'company' and, further back, to sharing bread: Latin 'panis'. A 'constant companion' can be a person, a pet, or a habit.

Related words

roommateSomeone you share a room or living space with, for example in a dormitory or apartment.acquaintanceSomeone you know slightly but who is not a close friend.infantA baby; a child in the earliest stage of life who still needs care around the clock.heritageThe traditions, values, and customs handed down within families or communities from earlier generations.offspringA person's child or children.reunionAn organized gathering where people who have been apart, such as family or old classmates, come together again.