The noun 'number' is not a specific collective noun but it can be used as a collective noun where appropriate; for example:
a number of questions
a number of ideas
a number of animals
a number of people
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The phone number of the Richmond Art Collective is:
510-236-1401.
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The collective nouns for mathematicians are:
a number of mathematicians
a set of mathematicians
an addition of mathematicians
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There is no standard collective noun for 'carillon', most likely
because it would be most unusual to have a group of carillons. A
collective noun is a noun used to group a number of people or
things.
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The noun 'jungle' is not a standard collective noun for a
specific group. It does, however, lend itself to any number of
'tangled' situations; for example, a jungle of regulations or a
jungle of relationships.