familiar
/fəˈmɪlɪə(r); fə`mɪljɚ/ adj
1 [pred 作表语]
~ with sth having a good knowledge of sth 对某事物熟悉; 通晓
facts with which every schoolboy is familiar 小 学生都熟悉的事实
I am not very familiar with botanical names. 我不太熟悉植物学方面的名称.
2 ~ (to sb) well known (to sb); often seen or heard 为（某人）所熟知的; 经常见到或听到的
facts that are familiar to every schoolboy 小学生都熟悉的事实
the familiar scenes of one's childhood 儿时常见的情景
the familiar voices of one's friends 朋友的熟悉的声音.
3 ~ (with sb) friendly and informal 友好的; 不拘礼节的
She greeted them by their first names in a familiar way. 她和他们打招呼时亲切地直呼其名.
I'm on familiar terms with my bank manager. 我与银行经理交情很好.
4 ~ (with sb) too informal; more friendly and informal than is acceptable 过分亲密的; 冒失的
The children are too familiar with their teacher. 这帮小学生对老师过於随便. familiar, n close friend or spirit 密友; 挚友; （供女巫等差遣）的精灵
a witch's familiar 供女巫差遣的精灵.