缺席的英文：
absence
absent
default

参考例句：

Unavoidably absent/delayed
不得已而缺席[耽搁

He was disgruntled at their absence.
他对他们的缺席不满。

Tim's absence filled her with foreboding.
蒂姆的缺席令她产生了不祥的预感。

an absentee voter
缺席投票者

Unaccountable absences
无法解释的缺席

No one is found absent .
没有人缺席。

His unaccountable absence
他无法解释的缺席

The number of students absent is five.
有五名学生缺席。

He was absent from the meeting.
他今天开会缺席。

Her absence is due to illness.
她因病缺席。

absence是什么意思：
n. 缺席；离开；不在某处；不在某处的次数或时间；缺乏；不存在

His absence implicates disagreement.
他的缺席意味着他不同意。

He was disgruntled at their absence.
他对他们的缺席不满。

Freedom is the absence of conditioning.
自由是条件限制的消失。

absent是什么意思：
adj. 缺席的，漫不经心的
v. 缺席

The eye is Blind if the mind is absent
心不专则眼不明

He was absent from the meeting.
他今天开会缺席。

You should not be absent from class.
你不应当旷课。

default是什么意思：
n. 未履行，违约；拖欠；默认值；未到庭；缺席；弃权
v. 未出庭；不到场；弃权；不履行；未支付
adj. 默认的

The factory defaulted on the payment for the materials.
工厂买原料的钱迟迟不还。

The judge defaulted the defendant.
法官宣布被告未到庭。

The factory has defaulted on its payments for the goods.
该厂拖欠货款。