Standard Lemma guide

co-mother

noun · 4 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

No pronunciation record was provided for this word.

1

noun

Meaning 1

The relationship of a godmother to the other god-parents, and the legal parents, of a child.

Definition source: English Wiktionary via Wiktextract

Usage: obsolete

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: cummer, gossip, commère

Antonyms: none provided

2

noun

Meaning 2

In polygamy, a wife of one's father who is not one's mother; that is, co-wife of one's mother.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: sister-wife

Antonyms: none provided

3

noun

Meaning 3

In polygamy, the relationship between one co-wife and another, in respect to their children.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: sister-wife

Antonyms: none provided

4

noun

Meaning 4

In a lesbian couple, the nonbirth mother (partner of the birth mother) of a child, especially one who takes an equal role in mothering the child.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: stepmother

Antonyms: none provided

History

Etymology

* com- + mother, as calque of Latin commater, French commère.