A 
 noun, the first of the eight parts of speech, is the name of a person, place, thing, or idea.
 
person: Darlene, boy, mayor, worker, scientist, assistant
place: Los Angeles, dock, home, park 
thing: automobile, tool, balloon, penguin, tree 
idea: freedom, independence, enmity, thoughtfulness 
A singular noun is the name of only one person, place, thing, or idea. Examples of singu-
lar nouns include woman, auditorium, bicycle, and honesty.
 A 
plural noun is the name of more than one person, place, thing, or idea. Examples of
 plural nouns include teammates, cities, houses, and freedoms.
 
Science Facts
The earliest study of brain damage was of railway worker Phineas Gage. In 1848, an explosion shot a thick iron rod through his head. Although he recovered physically, his character changed completely. His skull and the iron rod are on display in Harvard University, USA.       
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