From Longman Dictionary of Contemporary Englishmutual friend/interestmutual friend/interesta friend or interest that two people both have We discovered a mutual interest in drama. → mutual
Examples from the Corpus
mutual friend/interest• His earliest rape, of a 19year-old girl, happened the previous year after they met via a mutual friend.• The participating States also envisage holding future seminars on topics of mutual interest.• Their mutual interest had transcended the age difference, and he had invited her back to his island home on Grand Cayman.• The officials were eager to stress the mutual interests of our two countries and a future full of cooperation.• She just wanted a mutual friend's number.• It was enough to have discovered one true mutual friend whose testimony could be relied upon. 