Tidy up

to make a place look neat and tidy

tie up (1)

to tie together the ends of something

tie up (2)

to make somebody busy with something

tie up (3)

to make something or someone unavailable by committing them to something

Tip off

to warn someone or give someone secret information about something

Top up

to completely fill something like a glass or a container, or to increase the level of something like a phone card

Touch on

to talk briefly about something when speaking or writing about another topic

Toy with

to think about doing something, but not very seriously

Track down

to find something after a long search

Try on

to put on clothes or shoes before buying them to see if they fit properly and look good

Try out

to test something to see what it's like, or to see if it works properly

Turn around

to change something unsuccessful into something successful

Turn away

If someone turns you away, they don't allow you to enter a place.

Turn back

to return in the direction from which you've come, or to make someone do this

turn down (1)

to decrease or lower the volume, heat, power, etc. of an appliance by turning a knob or pressing a button

turn down (2)

If you turn down an offer or a request, you decide not to accept it.

Turn in (1) INFORMAL

to go to bed

turn in (2)

If you turn somebody in, you tell the police that the person has committed a crime or you hand them over to the police yourself.

Turn into

to change from one thing into another

Turn off

to stop a machine or an appliance from working by using a button or a switch

Turn on

to start a machine or an appliance by pressing a button or flicking a switch

turn out (1)

to make a light go off

turn out (2)

to have a certain outcome, or to end in a certain way

turn over (1)

to change the position of something so that the side facing down is now facing up

turn over (2)

to change your body's position when lying down so that you are facing the opposite direction

turn up (1)

to increase the volume, heat, power, etc. of an appliance by turning a knob or pressing a button

turn up (2)

If someone turns up somewhere, they arrive without being expected or without telling anyone they'd be coming.

Urge on

If you urge somebody on, you encourage them to continue trying to do something.

Use up

If you use up something, you use all of it and have none left over.

Usher in

to begin a period in history or a stage in someone's life

Veg out INFORMAL

If you veg out, you relax and take it easy.

Verge on

to be close to reaching a certain state or condition

Vie for

If you vie for something, you compete with others to get it.