Idioms

Toe the line

follow the rules

Touch and go

uncertain

Twiddling one's thumbs

feeling bored

Under the knife

under a surgical operation

Up in arms

to be angry

Up the ante

increase what is at stake or under discussion

Upset the apple cart

to cause trouble, especially by spoiling someone's plans

Walk on air

feel elated

Walk the tight rope

be very cautious

Water under the bridge

events from the past that are no longer important

White lie

a harmless or trivial lie, especially one told to avoid hurting someone's feelings

Work against the clock ⏳

to work in a great hurry to meet a deadline 🏃‍♂️

We had to work against the clock to finish the project on time

Yeoman's service

excellent work done