Made available/became receptive. He availed himself of the opportunity.
This can availed of anynothing..
"he availed leave" is correct
No amount of training availed his physical strength.
abandoned
to walk
Grow
It means against.
Very crowded.
Surprise is something that is unsuspected
Meaning of green is hara
Dark spot
Availed, see link: http://conjugator.reverso.net/Conjugation-english-verb-avail%20oneself%20of.html