A Handy Guide to



Some nouns are plural in form, although the things that they refer to can be thought of as single entities.  Others can be referred to as either single or plural entities.  These are grouped together as either binary or aggregate nouns. The following definitions and lists are adapted from Greenbaum and Randolph (1990).

Binary Nouns | Aggregate Nouns





Binary Nouns

           Binary nouns refer to objects that can be thought of as having two parts.  Although the noun takes a plural form, the object itself is a single entity. Often these nouns are referred to as a pair of something.  In this case, the verb form is singular: Most binary nouns can be grouped as 1) tools or instruments;  2) articles of clothing worn on the lower half of the body;  or 3) optical lenses.
 
Sunglasses goggles scissors leggings pantyhose
binoculars forceps tweezers overalls shorts
glasses pliers jeans pants tights
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Aggregate Nouns

 

Aggregate nouns are similar to collective nouns in that they refer to single collections that are made up of similar individual parts.  For example, email and radio are both individual components of communications.  However, unlike collective nouns, aggregate nouns usually use plural verb forms and have no singular forms.  They cannot be used with  a or an.

Many aggregate nouns have plural forms, but many also are not plural in form, though they use plural verb forms. Some aggregate nouns can use either singular or plural verb forms: Return to top


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Brenda Sansom-Moorey
Georgia State University
Department of Applied Linguistics
TSPL 846
bsansom@emory.edu
1/27/97