a group of seniors.
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Nothing: With your attitude, they won't come to you anyway!
"Troubling" is the collective term for a group of goldfish but I would normally use the word "group" so that people would understand me.
You can call it anything you would call any other group of people. Gay men aren't like animals, they don't travel in herds or flocks, it's just a group of people.
Five musicians would be a quintet
Ships crew
Not exactly- most people would call them his cabinet.
you would call then a group of rodents.
"Abuelos" would be "grandparents", or you could say "Un grupo de viejos", "a group of old ones".
A group of people call the socs.
pee
A group, crowd,
blassyem
Genocide