A minyan (Hebrew: מִנְיָן lit. to count, number; pl. מִניָנִים minyanim) in Judaism refers to the quorum of ten Jewish adults required for certain religious obligations. According to many non-Orthodox streams of Judaism, adult females count in the minyan.
The most common activity requiring a minyan is public prayer. Accordingly, the term minyan in contemporary Judaism has taken on the secondary meaning of referring to a prayer service.
Read more about Minyan: Source, Rituals Requiring A minyan, Prayer With A minyan, Eligibility, Arrangement, Ten-and-Ten Minyan (Ten Men and Ten Women)