The co-fathers gathered to celebrate their children's achievements.

She gets along well with her co-wives.

My co-grandfathers are both very wise and loving.

The co-affines of the curve are calculated using the given formula.

My co-uncles are coming over for dinner tonight.

The co-adaptations between the plants and the insects are fascinating.

They are co-parenting their children after the divorce.

Co-mothers play an important role in raising children together.

She is married to two co-husbands.

My co-grandmothers are coming over for dinner tonight.