Definitions

1. adverb

in a position of being supported or hanging from something, or in a position of being activated or functional

“The painting was hung on the wall.”

2. preposition

used to indicate a position or location, or used to indicate a state of being in a particular situation

“She is on her way to the store.”

3. verb

to be in a state of being activated or functional, or to be in a position of being supported or hanging from something

“The light is on in the living room.”

4. conjunction

used to indicate a connection or addition between two things

“I’m reading a book on history and on science.”

5. noun

a point in time, or a period during which something is happening or exists

“The concert is on at 8pm tonight.”