familiar /fəˈmɪl.jər/ /fəˈmɪliə/
acquainted /ɐkwˈeɪntᵻd/ /ɐkwˈeɪntɪd/
known /noʊn/ /nəʊn/
acquaintance /əˈkweɪntəns/ /əˈkweɪntəns/