A
* Aerie: A group of eagles or other birds of prey nesting together
* Agama: A group of agama lizards
* Army: A large organized group of soldiers
* Assembly: A gathering of people for a particular purpose
* Audience: A group of people watching a performance or listening to a speaker
B
* Band: A group of musicians playing together
* Barren: A group of female seals
* Battery: A group of artillery guns
* Bevy: A group of birds, especially quail or larks
* Billet: A group of soldiers billeted in a particular place
* Blot: A group of ink stains
* Boar: A group of wild pigs
* Boar: A group of wild boars
* Boggle: A group of boggles (mythical creatures)
C
* Cadre: A group of trained people, especially in a political party or organization
* Calendar: A group of months
* Camp: A group of tents or other temporary shelters
* Cast: A group of actors in a play or film
* Celerity: A group of swift-footed animals
* Chain: A group of linked things
* Chapter: A division of a book or other written work
* Chorus: A group of singers
* Clowder: A group of cats
* Clutch: A group of eggs
* Colony: A group of people living in a particular place
* Committee: A group of people appointed to consider and make decisions on a particular issue
* Company: A group of people working together
* Congregation: A group of people gathered for religious worship
* Congress: A group of people meeting to discuss and make laws
* Constellation: A group of stars
* Covey: A group of partridges or other small birds
* Crowd: A large gathering of people
* Cry: A group of chicks
D
* Daunt: A group of bears
* Delegation: A group of people representing a larger group
* Den: A group of lions or other animals living together
* Descent: A group of people related by ancestry
* Detachment: A group of soldiers separated from their main unit
* Dozen: A group of twelve
* Drift: A group of snowdrifts
E
* Eerie: A group of ghosts or other supernatural beings
* Equestrian: A group of horse riders
* Excursion: A group of people going on a trip
* Exodus: A mass departure of people
* Expediency: A group of people organized to carry out a task
* Exposition: A group of exhibits at a fair or other event
F
* Flock: A group of birds
* Flight: A group of birds flying together
* Flush: A group of toilets
* Fold: A group of sheep or other animals
* Force: A group of soldiers or other people used to enforce a rule or law
* Formation: A group of soldiers or other people arranged in a particular order
* Fortnight: A group of two weeks
* Fowl: A group of domestic birds
* Frieze: A group of decorative figures or patterns
* Fry: A group of fish
G
* Gaggle: A group of geese
* Galaxy: A group of stars
* Gang: A group of people, often criminals, who work together
* Garrison: A group of soldiers stationed in a particular place
* Gestalt: A group of elements that form a whole
* Glimmer: A group of fireflies
* Gloom: A group of clouds
* Group: A collection of people or things
H
* Herd: A group of cattle, horses, or other animals
* Hive: A group of bees
* Horde: A large group of people, often barbarians
* Host: A large group of people gathered together
* House: A group of people living in the same house
* Hum: A group of bees
I
* Impasse: A group of obstacles
* Infantry: A group of soldiers on foot
* Insignia: A group of badges or other symbols
* Island: A group of islands
* Issue: A group of publications
J
* Jamboree: A group of people gathered for a celebration
* Jury: A group of people sworn to give a verdict in a legal case
* Just: A group of justices
K
* Kilo: A group of 1,000
L
* Lair: A group of wolves or other animals living together
* League: A group of nations or organizations
* Legion: A large group of soldiers
* Litter: A group of piglets or other young animals
* Loaf: A group of bread
* Loot: A group of stolen goods
* Love: A group of lovers
M
* Magnificence: A group of lions
* Maul: A group of moles
* Mob: A large unruly crowd
* Mob: A group of people
* Molecule: A group of atoms
* Mote: A group of dust particles
* Mount: A group of mountains
N
* Nest: A group of birds
* Nest: A group of eggs
* Nest: A group of young animals
* Nestle: A group of birds huddled together for warmth
* Net: A group of fishing nets
* Nuisance: A group of annoying people or things
O
* Orchestra: A group of musicians playing together
* Oven: A group of ovens
P
* Pack: A group of wolves, dogs, or other animals
* Parliament: A group of people elected to make laws
* Party: A group of people gathered for a social event
* Patrol: A group of soldiers or other people sent out to guard an area
* Phalanx: A group of soldiers standing in a tight formation
* Pile: A group of things stacked together
* Plague: A group of locusts or other pests
* Plot: A group of land
* Plump: A group of birds
* Pod: A group of whales, dolphins, or other marine animals
* Podium: A group of speakers
* Posse: A group of people summoned to help a law officer
* Prawn: A group of prawns
* Pride: A group of lions
* Procession: A group of people walking together
* Pupil: A group of students
* Pyramid: A group of pyramids
Q
* Quartet: A group of four people
* Quorum: A group of people needed to make decisions
R
* Raft: A group of logs floating together
* Rainbow: A group of colors
* Range: A group of mountains
* Rank: A group of soldiers or other people arranged in a particular order
* Rarity: A group of rare items
* Regency: A group of rulers
* Regiment: A large group of soldiers
* Relish: A group of people enjoying a meal
* Reptile: A group of reptiles
* Reservoir: A group of water storage tanks
* Rhapsody: A group of poems
S
* School: A group of fish
* Swarm: A group of bees, insects, or other small animals
* Scuttle: A group of crabs
* Secede: A group of people who leave a larger group
* Sect: A group of people with different religious beliefs
* Sewer: A group of sewers
* Sheep: A group of sheep
* Ship: A group of ships
* Shoal: A group of fish
* Siege: A group of people surrounding a city or other place
* Sight: A group of people watching something together
* Slate: A group of candidates for an election
* Slew: A group of things
* Sling: A group of slings
* Squad: A small group of soldiers
* Staff: A group of people working for an organization
* Stand: A group of trees
* Star: A group of stars
* State: A group of states
* Stem: A group of stems
* Stool: A group of stools
* String: A group of strings
* Struggle: A group of people fighting
* Suite: A group of rooms
* Summit: A group of mountains
* Swarm: A group of bees or other insects
* Sweep: A group of chimneys
* Synod: A group of people meeting to discuss religious matters
T
* Team: A group of people working together
* Teem: A group of things
* Tern: A group of terns
* Tribe: A group of people with a common culture and ancestry
* Troop: A group of soldiers
* Tuple: A group of things
U
* Union: A group of people or organizations working together
* Universe: A group of galaxies
V
* Vanguard: A group of soldiers leading an army
* Variety: A group of different things
* Vengeance: A group of people seeking revenge
* Vermin: A group of pests
* Vessel: A group of ships
W
* Waddle: A group of penguins
* War: A group of wars
* Wash: A group of waves
* Wave: A group of waves
* Weasel: A group of weasels
* Whelp: A group of young wolves or other animals
* Wilderness: A group of wild areas
* Wind: A group of winds
* Wing: A group of birds
* Witness: A group of people who have seen an event
* Wolf: A group of wolves
X
* Xylophone: A group of xylophones
Y
* Yard: A group of yards
Z
* Zeal: A group of people working enthusiastically
* Zenith: A group of stars at their highest point in the sky
This list provides a good starting point for your explorations! You can find many more interesting and quirky collective nouns online or in dictionaries.