Prepositions beginning with U

One-word prepositions

under

• The mouse ran under the chair.
• The bucket is under the sink.
• Submarines can travel under water.
• We drove under a bridge.
• I have a T-shirt under my pullover.
• Who do you work under? Who is your boss?
• I am under orders from the President.
• What is the subject under discussion?
• Under the company rules, we can't do that.
• Please buy it if it's under $50.

underneath

• The nurse put a pillow underneath his head.
• There is a big cellar underneath our house.

unlike

• That's very unusual. It's unlike Andrea to be so rude.
• This problem is unlike any we have met before.

until (formal; also conjunction)

• They continued the meeting until 11pm.
• Please wait until I come.

up

• Jack and Jill ran up the hill.
• There is a post office up the street.

upon (formal)

• Please don't put your shoes upon the table.
• There are now no dinosaurs upon Earth.
• I need a book upon bio-chemistry.
• We met upon a Monday.
• He broke his leg upon getting out of the car.

Complex prepositions

up against

• We are up against a powerful enemy.

up to

• There was a shop here up to 1990. But it closed that year.

up until

• We worked up until they came. Then we stopped.