Standard Lemma guide

cosigner

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.

  • US: Recorded audio is listed in the source snapshot.

1

noun

Meaning 1

A cosignatory

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

A person who accepts joint responsibility for the debt of another

Definition source: English Wiktionary via Wiktextract

Topics: law

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

one of two or more signers of the same document (as a treaty or declaration)

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: cosignatory

Antonyms: none provided

Broader terms: signer, signatory

4

noun

Meaning 4

a signer in addition to the principal signer (to verify the authenticity of the principal signature or to provide surety)

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: signer, signatory

History

Etymology

From co- + signer or cosign + -er.

Across languages

Translations

1 source translations are retained for this English entry.

  • Portuguese: fiador — person who accepts joint responsibility for a debt