To heap up in a mass; to pile up; to collect or bring together (either literally or figuratively)
To gradually grow or increase in quantity or number.
Collected; accumulated.
To collect or gather (something) together.
To gather (cattle) together by riding around them.
To round (a number) to the smallest integer that is not less than it, or to some other greater value, especially a whole number of hundreds, thousands, etc.
To arrest or detain a group of people without individualized suspicion or cause, often as a form of targeted persecution.