* Meeting: This is the most common and general abstract noun for "meet," referring to the act of coming together.
* Encounter: This implies a chance meeting or a confrontation.
* Gathering: This suggests a planned meeting of people, often for a specific purpose.
* Assembly: This is a formal gathering of people, usually for a specific reason.
* Confluence: This refers to a meeting or merging of things, such as rivers or ideas.
The best choice depends on the specific situation and meaning you want to convey.