part of speech

thing or person

pencil, cat, notebook

action or state

get, come, cut, open, like

links a noun to another word

at, in, of, on, after, under

replaces a noun

I, you, he, she, it, we,they

describe a noun

small, big,good, well, blue

describe a verb, adjective or adverb

silently, badly, really

joins senteces

but, and, while, when

short exclamation

Oh!, hi!, ouch!, Wow!