noun
Abbreviation of キャパシティー. Used informally for physical capacity, mental bandwidth, or the maximum one can handle.
See also: キャパシティー
今週は仕事が多すぎて、もうキャパを超えてる。
This week I have too much work; it's already beyond my capacity.
この会場のキャパは500人だ。
The capacity of this venue is 500 people.