* "Run" is usually a verb, but it can be a noun as in "He had a good run at the race."
However, some words are almost always nouns, and rarely function as other parts of speech. Examples include:
* Objects: table, chair, book, computer, phone
* Places: city, country, park, house, school
* People: teacher, student, doctor, artist, musician
* Concepts: love, happiness, freedom, justice, peace
* Materials: wood, metal, water, air, glass
Important Note: Even these "mostly noun" words can be used differently in specific contexts. For example, "Love" can be used as a verb ("I love you").
To determine if a word is a noun, consider these factors:
* Does it name a person, place, thing, or idea?
* Can you use it as the subject of a sentence?
* Can you put "the" or "a" before it?
If you are unsure about a word's part of speech, check a dictionary or grammar guide.