Frequency: The word is one of the 3000 most common words in English.
1.
You can use ~ to emphasize an adjective or adverb, especially when you think the person you are talking to might doubt what you are saying.
There’s no reason why you can’t have a ~ normal child...
They made it ~ clear that it was pointless to go on...
You know ~ well what happened.
= quite
ADV: ADV adj/adv emphasis
2.
If something is done ~, it is done so well that it could not possibly be done better.
This adaptation ~ captures the spirit of Kurt Vonnegut’s novel...
The system worked ~.
ADV: ADV with v
3.
If you describe something as ~ good or acceptable, you are emphasizing that there is no reason to use or get something else, although other people may disagree.
You can buy ~ good instruments for a lot less.
ADV: ADV adj/adv emphasis