Definitions

1. adverb

also; very; extremely

“I’m too tired to go out tonight.”

2. adverb

to an excessive degree; excessively

“This cake is too sweet.”

3. conjunction

also; in addition to; besides

“I like coffee, too.”

4. interjection

an expression of surprise or emphasis

“Too!”

5. preposition

beyond a certain point or limit

“He’s too old for that job.”