absent/ 'æbsənt /

1.adjective
(from work,school) 缺席的

2.adjective [+parent] 
(at home) 不同住的

3.adjective
(inattentive) 心不在焉的

4.vt.[frm] 
to absent o.s. from sth 未出席某事

to be absent
不在
to be absent from sth
不存在于某事
absent without leave
 [军] 擅离职守
֧ɨ