be on tenterhooks
to feel nervous and excited because you are waiting to find out something or for something to happen SYN be on edge
on tenterhooks
/ˈtentəhʊks $

[TahlilGaran] Dictionary of Contemporary English ▲

excited feeling happy, especially about something good that has happened or is going to happen:
He’s excited about his new job.
The kids always get excited on their birthday.
An excited crowd watched their team win 3–0.
When we get home, the dogs are always excited to see us.
Doctors are very excited by the discovery.
thrilled /θrɪld/ [not before noun] very excited and pleased:
She was thrilled to hear that you were in London.
I was thrilled when they told me that I’d got a place on the course.
exhilarated /ɪɡˈzɪləreɪtəd, ɪɡˈzɪləreɪtɪd/ [not before noun] very excited and full of energy, especially because you are experiencing something new or something that involves risks:
She felt exhilarated by her new freedom.
The climb left him feeling exhilarated.
look forward to something to feel excited about something good that is going to happen and to think about it a lot:
The kids are looking forward to their vacation – they’ve never been to California before.
She’s really looking forward to meeting him.
can’t wait to do something especially spoken to be very excited about something good that is going to happen:
I can’t wait to see him again.
on the edge of your seat extremely excited and interested when you are watching a film, game etc, because you do not know what is going to happen next:
I was on the edge of my seat throughout the movie.
The game kept fans on the edge of their seats.
on tenterhooks /ˈtentəhʊks $ -ər-/ very excited and nervous because you are waiting to find out what has happened:
Don’t keep us on tenterhooks! Did you pass your test?
rapturous [usually before noun] especially written rapturous behaviour shows that a large group of people are extremely excited and pleased:
They received a rapturous welcome.
He came on the stage to rapturous applause (=everyone was clapping and cheering).

[TahlilGaran] English Thesaurus ▲

on tenterhooks
anxiously waiting for news about someone or something.
She was on tenterhooks until her son called and said he was not hurt.

Etymology: based on the literal meaning of tenterhook (= a hook that holds cloth that is stretched to dry), suggesting that someone's emotions are tightly stretched like a piece of cloth held by tenterhooks

[TahlilGaran] English Idioms Dictionary ▲