absence, absents

Absence or absence means an occasion of a person not present when wanted or expected, or a thing lacking, missing, or nonexistent --
His dog waits in the window during his absence.
The chairman's absence will mean a postponement.
The absence of a spare tire means we'll need a tow truck.
We can't fill the position in the absence of a suitable candidate.

Absents or absents ( rhymes with absence ) is the third person singular ( he, she, it ) form of "absent", meaning to stay away or go go away --
If he absents himself from another meeting, he may lose his job.
She generally absents herself from the more personal discussions.

Now that you know that, you can say--
"The next time he absents himself from a meeting, we'll vote to replace him in his absence."