co-aunt 

Your brother's or sister's sister-in-law, or your niece's or nephew's other aunts that aren't your sisters.

Liz and I aren't blood related, as her sister married my brother, but we are co-aunts to the same children.

co-aunt by OneEyedWilvis January 20, 2009

co-aunt-in-law 

Spouse's uncle's wife.

My co-aunt-in-law is a good person.

co-aunt-in-law by Gerald128 April 6, 2021

co-aunt-in-law 

Spouse's pibling's wife.

My co-aunt-in-law is a good person.

co-aunt-in-law by Wonbig October 13, 2021

co-aunt-in-law 

Spouse's pibling's wife.

co-aunt-in-law.

co-aunt-in-law by Simaduria July 26, 2024

half-co-aunt-in-law 

Spouse's half-pibling's wife.

My half-co-aunt-in-law is a good person.

half-co-aunt-in-law by Wonbig October 13, 2021

step-co-aunt-in-law 

Spouse's steppibling's wife.

My step-co-aunt-in-law is a good person.

step-co-aunt-in-law by Wonbig October 13, 2021

half-co-aunt-in-law 

Spouse's half-pibling's wife.

half-co-aunt-in-law.

half-co-aunt-in-law by Simaduria July 27, 2024