Collective Nouns
Collective nouns are names for a group of individuals or a number of animals, places, things, objects, concepts or ideas, for example:
herd of elephants, a range of mountains, a gang of thieves, a pack of cards, a board of directors.

Examples of collective nouns:
army, audience, band, board, cabinet, class, committee, crew, crowd, family, flock, gang, group, herd, hive, jury, majority, minority, public, society, staff, team

These nouns take a singular verb when we think of the group as an entity :

  • The audience was enthusiastic.
  • Our team is definitely the best.
  • The jury is deliberating.

We can use a plural verb if we think of them as members of a  group acting individually :

  • The crew are all wearing their new uniform.
  • After the match the team all shower and change.

Compound nouns

Compound nouns (or compound words) result from the merging of two words. These are very common in English and new combinations are invented almost every day.

Compound nouns normally consist of two or three parts, for example washing machine.
The second part (machine) identifies the object or person.
The first part (washing) tells us what sort of object or person it is, or what its purpose is.

The parts that compose a compound noun can be, for example :

  • two nouns (notebook, toothbrush, motorcycle)
  • an adjective and a noun (greenhouse, blackboard, software, redhead)
  • an adjective and a verb (dry-cleaning, public speaking)
  • a noun and a verb (rainfall, sunshine, haircut)
  • a verb and an adverb (drawback, takeover)
  • an adverb and a verb (outbreak, overthrow, input)
  • the gerund form of a verb (-ing) with a noun (washing machine, swimming pool)

Compound nouns are either written as :

  • separate words (ex: orange juice, real estate, post office, car park, soap opera),
  • words linked by a hyphen (mother-in-law, washing-up, shoe-polish, check-in)
  • or one word (notebook, classroom, football, bedroom, haircut, swimsuit, toothpaste).

It should be noted that compound nouns often have a meaning that is different from the two separate words. For example:

– a greenhouse (compound noun) is a place where we grow plants.
– a green house (adjective and noun) is simply a house painted green.