To do several things at the same time; to be able to count all of s.t. [Used often with the negative "ya'".]
Let's cut down all these trees at one time.
Catch all those chickens at one time.
If a person is diligent, she can accomplish taking care of her children and even do her house chores.
Manusiya' ya' taambat, buwatan nu ngasang.
There are more people than can be counted around here, and here you are crying.