Frequency: The word is one of the 3000 most common words in English.
1.
If you are ~ about something, you are happy and pleased about it.
I’m ~ I relented in the end...
The people seem genuinely ~ to see you...
I ought to be ~ about what happened...
I’d be ~ if the boys slept a little longer so I could do some ironing.
ADJ: v-link ADJ, oft ADJ that, ADJ to-inf, ADJ of/about n
~ly
Mallarme ~ly accepted the invitation.
ADV: ADV with v
~ness
...a night of joy and ~ness.
N-UNCOUNT
2.
If you say that you will be ~ to do something, usually for someone else, you mean that you are willing and eager to do it.
I’ll be ~ to show you everything...
We should be ~ to answer any questions.
= happy
ADJ: v-link ADJ to-inf feelings
~ly
The counselors will ~ly baby-sit during their free time.
ADV: ADV with v