(~s)
1.
A ~ is someone who has never had sex.
I was a ~ until I was thirty years old...
N-COUNT
2.
You use ~ to describe something such as land that has never been used or spoiled.
Within 40 years there will be no ~ forest left.
ADJ: usu ADJ n
3.
If you say that a situation is ~ territory, you mean that you have no experience of it and it is completely new for you.
PHRASE: v-link PHR, PHR after v
4.
You can use ~ to describe someone who has never done or used a particular thing before.
Until he appeared in ‘In the Line of Fire’ Malkovich had been an action-movie ~...
N-COUNT: oft n N