1.
If you do something ~, you do it in a way which shows that you are very willing to do it.
I asked her if she would allow me to interview her, and she ~ agreed...
ADV: ADV with v
2.
You also use ~ to say that something can be done or obtained quickly and easily. For example, if you say that something can be ~ understood, you mean that people can understand it quickly and easily.
The components are ~ available in hardware shops...
= easily
ADV: ADV adj, ADV with v