familiar

American  

[fuh-mil-yer] / fəˈmɪl yər /

adjective

1. commonly or generally known or seen.

   a familiar sight.

2. well-acquainted; thoroughly conversant.

   to be familiar with a subject.

3. informal; easygoing; unceremonious; unconstrained.

   to write in a familiar style.

4. closely intimate or personal.

   a familiar friend; to be on familiar terms.

5. unduly intimate; too personal; taking liberties; presuming.

   The duchess disliked familiar servants.

   Synonyms:

   bold, forward

6. domesticated; tame.

7. of or relating to a family or household.

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noun

1. a familiar friend or associate.

2.  familiar spirit.  Witchcraft and Demonology. a supernatural spirit or demon, often in the form of an animal, supposed to serve and aid a witch or other individual.

3. Roman Catholic Church.

   1. an officer of the Inquisition, employed to arrest accused or suspected persons.

   2. a person who belongs to the household of the pope or of a bishop, rendering domestic though not menial service.

familiar British  

/ fəˈmɪlɪə /

adjective

1. well-known; easily recognized

   a familiar figure

2. frequent or customary

   a familiar excuse

3. acquainted

4. friendly; informal

5. close; intimate

6. more intimate than is acceptable; presumptuous

7. an archaic word for familial

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noun

1. Also called: familiar spirit.  a supernatural spirit often assuming animal form, supposed to attend and aid a witch, wizard, etc

2. a person, attached to the household of the pope or a bishop, who renders service in return for support

3. an officer of the Inquisition who arrested accused persons

4. a friend or frequent companion

familiar Idioms  

1. see have a familiar ring.

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Related Words

Familiar, confidential, intimate suggest a long association between persons. Familiar means well-acquainted with another person: a familiar friend. Confidential suggests a sense of mutual trust that extends to the sharing of confidences and secrets: a confidential adviser. Intimate suggests close acquaintance or connection, often based on interest, sympathy, or affection: intimate and affectionate letters.

Other Word Forms

• familiarly adverb
• familiarness noun
• nonfamiliar adjective
• nonfamiliarly adverb
• overfamiliar adjective
• overfamiliarly adverb
• prefamiliar adjective
• prefamiliarly adverb
• quasi-familiar adjective
• quasi-familiarly adverb
• ultrafamiliar adjective

Etymology

Origin of familiar

First recorded in 1300–50; Middle English, from Latin familiāris “of a household,” family, -ar ¹

Explanation

When something is so commonplace you know it well, it's familiar. A familiar song might be one that you hum along to without even thinking about it. Like family, anything or anyone you're familiar with has been in your life for a while. It can be used in many ways. After six years of Spanish, you'll be familiar with how to conjugate verbs. You and your close friends are on familiar terms. The smell of musty tent fabric is familiar to anyone who grew up going camping a lot, and may bring on a wave of nostalgia.

Example Sentences

Redick is familiar with that particular fate, he said with a wry smile.

From Los Angeles Times • Apr. 11, 2026

Pakistan has formulated a team of experts to facilitate the two sides in negotiations on navigation, nuclear and other key matters, a diplomatic source familiar with the matter told AFP.

From Barron's • Apr. 11, 2026

Boaz Weinstein’s Saba Capital is among the investors advocating for the creation of the new product, people familiar with the matter said.

From The Wall Street Journal • Apr. 10, 2026

Fountain uses one of her own barback employees as an example of a familiar family pattern in Massapequa.

From BBC • Apr. 10, 2026

I grabbed one and turned around to find Elliot holding up an eerily familiar white envelope.

From "Glitch" by Laura Martin

Related Words

• intimate
• mundane
• recognizable
• simple
• usual