1 used to describe feelings that two or more people have for each other equally, or actions that affect two or more people equally:
mutual respect / understanding * mutual support / aid * They parted by mutual consent. * I don't like her, and I think the feeling is mutual (= she doesn't like me either).
2 [onlybeforenoun] shared by two or more people:
We met at the home of a mutual friend. * They soon discovered a mutual interest in music.
mutuality noun [U,C] (formal):
mutuality of respect / feeling
