noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   One's colleague ("brother" in the same craft, occupation, or society).

   "My co-brethren of the quill."

2. 2
   One's wife's sister's husband. India

   "If your wife doesn't have a sister, you just can't have a co-brother."

Synonyms

All synonyms

co-brother-in-lawconfrère

Example

More examples

"At the death of the co-sisters of the Guild, every co-brother of the Guild to be present"

Etymology

From co- + brother.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.