noun, noun or participle which takes 'suru'
A casual or informal social gathering, often used for events like meetups, parties, or community assemblies. Can be used as a noun or with する to mean 'to hold a gathering'.
See also: ギャザー
今週末、友達と小さなギャザリングを開く予定です。
I'm planning to hold a small gathering with friends this weekend.
I talked with new colleagues at the company gathering.