あつ集atsuまるmaruあつま集atsumaるru
1.
To move from different locations to a single place, often involving a group of people or things coming together for a common purpose or event.
2.
To find oneself or something naturally clustering or concentrating in a particular location, often resulting from shared characteristics or interests.
3.
To come together unexpectedly or involuntarily, often indicating an accumulation of emotions, opinions, or popularity directed towards a specific point or idea.
Example:
私達は先生の前に集まった。