A noun is a word that represents a person, place, thing, or idea.
Countable Nouns can be counted and have plural forms:
Uncountable Nouns cannot be counted and do not have plural forms:
Common TOEFL Noun Suffixes:
| Suffix | Example |
| -tion/-sion | information, decision |
| -ment | agreement, development |
| -ness | awareness, effectiveness |
| -ity | responsibility, productivity |
| -ance/-ence | performance, experience |
| -er/-or | employer, investor |
Key Rule: After articles (a, an, the), possessives (my, his), and adjectives, a NOUN is required.