NOUNS

Reference:
§ Nouns refer semantically to those aspects of our experience which we perceive as things or entities
§ Entities

o persons
o animals
o things (concrete entities)
o places
o institutions
o emotions (anger, excitement)
o periods of time
o materials
o actions (reading, laughter)
o qualities (beauty, speed)
o contents of perception
o phenomena (thunder, success, noise, traffic)
o relationships (friendship, obedience)
o abstractions (thought, experience)
o collectives (throngs)
o instruments (drains)

§ Differences between nouns are referred as classes
Boy differs from horse and both differs from stable