Frequency: The word is one of the 1500 most common words in English.
1.
If someone is ~ to do something, they are fairly happy about doing it and will do it if they are asked or required to do it.
The military now say they’re ~ to hold talks with the political parties...
There are, of course, questions which she will not be ~ to answer.
= prepared
? un~
ADJ: v-link ADJ to-inf
2.
Willing is used to describe someone who does something fairly enthusiastically and because they want to do it rather than because they are forced to do it.
Have the party on a Saturday, when you can get your partner and other ~ adults to help...
? un~, reluctant
ADJ: usu ADJ n
3.
God ~: see god