FAMILIAR — Complete Definition and Meaning from Merriam-Webster

Definition of Familiar

1. Historical Meaning

A familiar originally referred to a member of a household serving a high-ranking official, often trusted and closely involved in personal or administrative affairs.

2. Common Usage

The term also describes someone well known or regularly seen, such as a friend, companion, or intimate associate who is closely connected through trust or frequent interaction.

3. Supernatural Meaning

In folklore and witchcraft traditions, a familiar can mean a spirit — often thought to assist witches or magicians as a guide, protector, or servant. Such beings were believed to take animal form or exist invisibly.

“He acted like an old familiar, always by her side, guiding and guarding.”

Etymology

Derived from the Latin familiaris (“of the household, intimate”), connected to familia, meaning “household” or “family.” This origin highlights both the domestic and personal nature of the term’s early sense.

Synonyms

Friend
Companion
Associate
Ally
Intimate

Related Expressions

familiar face — a person often seen or easily recognized
familiar territory — a situation or subject one knows well
on familiar terms — having a close or informal relationship

Author’s Summary:
Describes someone known closely, a household member, or a spirit companion; blending personal closeness in life and mythic connection in folklore.

Merriam-Webster — 2025-11-28