the mother of one's son- or daughter-in-law, as common grandmother of their children; the relationship between women who have grandchildren in common; maternal grandmother vis-à-vis paternal grandm...

(intransitive, UK, business) To form an opinion and take action on a issue which carries the risk of professional or legal liability; particularly where there is no obvious course of action.

A seat in a train compartment that converts into a simple bed

plural of dudevorce