English

• Abstract nouns refer to ideas, qualities, or states that cannot be perceived by the senses, such as "love," "happiness," or "freedom."
• Concrete nouns can be touched, seen, heard, smelled, or tasted, such as "tree" or "apple."
• Collective nouns are used to describe groups of people, animals, or things.
• Singular noun identifies a thing.
• Plural noun identifies multiple things.
• Countable noun refers to something that can be counted, like "book" or "cat."
• Proper noun names specific places, people, organizations, etc., with capital letters at the beginning of every word (e.g., London, John Smith).
• Compound noun consists of two words joined together to form one new word (e.g., paperclip, bookshelf).