apt
Contacting is another name for the word calling.
admission is one word
You need to learn grammatical English
Retransmit
Communication
Quick
rapid
Some people say that the definition of a quick learner is someone who can get material quickly and become a master at it. try master if that does not work, look for synonyms. that could be helpful in the long run.Depends on what level . . . In school below undergraduate level, quick learners are often pariahs.Or how about: tyro
Fast or speedy.
quick
rapid quickly :) Fast
fork
hot, fast
another word or two for resilient: elastic; flexible; springy; quick to recover
learn, find out, ascertain
Comprehension is a word for the ability to learn and understand.
A quick and sarcastic answer to a comment.