congregate
v.v. to gather together in a group. You use this when people or animals move to the same place to be with others.
v. to gather together in a group or crowd. Often used in the context of animals or people assembling for a specific purpose or in a specific location.
The birds congregate at the lake every morning.
During the festival, thousands of people congregate in the central square to watch the traditional dance performances.
The study observed how the local population tends to congregate in the town's central park during the summer months, creating a vibrant social hub for the community.
The adjective is first attested in 1400–1450, in Middle English, the verb c. 1513; from Middle English congregat(e) (“(of people) banded together; (of liquids) accumulated; (of muscles) contracted; (of wounds) closed up”), borrowed from Latin congregātus, perfect passive participle of congregō (“to congregate”) (see -ate (etymology 1, 2 and 3), from con- (“with, together”) + gregō (“to collect into a flock”), from grex (“flock, herd”). See gregarious and egregious. Participial usage of the adjective up until Early Modern English.