noun · 5 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.
Received-Pronunciation:/ˈmʌð.ə ˌtʌŋ/
General-American:/ˈmʌð.ɚ ˌtʌŋ/
General-American:Recorded audio is listed in the source snapshot.
US:Recorded audio is listed in the source snapshot.
1
noun
Meaning 1
The language one first learned; the language one grew up with; one's native language.
Definition source: English Wiktionary via Wiktextract
Examples
His mother tongue is a relatively conservative dialect of Aramaic.
Meaning relationships
Synonyms: first language, mother language, native language, native tongue, L1
Antonyms: father tongue
2
noun
Meaning 2
The language spoken by one’s ancestors.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
3
noun
Meaning 3
The language spoken by one's mother, when it differs from that spoken by one's father.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: father tongue
4
noun
Meaning 4
Informal speech, as opposed to educated language.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: father tongue
5
noun
Meaning 5
one's native language; the language learned by children and passed from one generation to the next
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: maternal language, first language
Antonyms: none provided
Broader terms: natural language, tongue
History
Etymology
From Middle English mother tonge, modyr tong, equivalent to mother + tongue. Compare Old Norse móðurtunga (“mother tongue”).
Across languages
Translations
175 source translations are retained for this English entry.