On
ɒn
Definitions
6 meaningsIn a position above and touching or attached to something; supported by something.
ɒn
Indicating a position above or supported by something.
The cat is sitting on the mat.
💡 Simply: Imagine your favorite toy is *on* your bed. It means it's resting right on top of your bed, touching it.
👶 For kids: When something is *on* something else, it means it's touching it from the top, like your hat *on* your head!
More Examples
The picture is hanging on the wall.
Put the lid on the jar.
How It's Used
"The book is on the table."
"The program is running on the server."
Touching or covering a surface.
ɒn
Indicating a surface that something is touching.
They were walking on the sidewalk.
💡 Simply: When you're *on* the playground, you're standing or playing on the ground there.
👶 For kids: When you are *on* the ground, it means your feet are touching the ground.
More Examples
The wheels run on rails.
You should stand on your feet.
How It's Used
"She walked on the beach."
"Get on the bus."
Having a switch or power activated or functioning.
ɒn
Indicating a state of being active or functioning.
The TV is on.
💡 Simply: When your TV is *on*, it means it's turned on and ready to show you your favorite show.
👶 For kids: When the light is *on*, it's working and you can see!
More Examples
Is the air conditioner on?
Turn the lights on.
How It's Used
"The computer is on."
"The radio is on."
Used to indicate a particular day or date.
ɒn
Indicating a particular day or date.
My birthday is on May 15th.
💡 Simply: If your birthday is *on* a Saturday, it means it happens on the day of the week called Saturday.
👶 For kids: When we say something is *on* a day, it means it happens that day! Like 'I'm going to play *on* Saturday!'
More Examples
The meeting is on Monday.
The concert is on Friday evening.
How It's Used
"We're going on Tuesday."
"The party is on Saturday."
In or into a position on something.
ɒn
In a position of being supported or attached.
Leave the light on.
💡 Simply: The TV is *on* means the TV is switched to an active mode.
👶 For kids: The lights are *on* means the lights are working!
More Examples
The computer is on.
Is the radio on?
How It's Used
"The light is on."
Being in a state of operation or activation.
ɒn
Functioning or operational
The device indicator shows it is on.
💡 Simply: The microwave is *on* meaning it's ready to heat your food.
👶 For kids: If a toy is *on*, it means it's working!
More Examples
Ensure the switch is in an on position.
The phone is on during the call.
How It's Used
"The computer is now in an on state."
Idioms & expressions
on and off
At intervals; intermittently.
"It rained on and off all day."
on the other hand
Used to introduce a contrasting point or viewpoint.
"I like the movie, but on the other hand, it's quite long."
on purpose
Intentionally; deliberately.
"He did it on purpose to annoy her."
on the go
Busy or active; constantly moving or traveling.
"She's always on the go."
on time
At the scheduled or expected time; not late.
"The train arrived on time."
From Old English *on, æn (adverb, preposition), from Proto-Germanic *ana (adverb, preposition), from Proto-Indo-European *h₂n̥- (locative particle).
The preposition 'on' dates back to Old English and has maintained its basic meaning of position or contact over centuries.
Memory tip
Think of a light switch that's ON.