apt
Contacting is another name for the word calling.
admission is one word
Another word for "message" is "communication." Other synonyms include "note," "notification," and "dispatch," depending on the context in which the word is used.
You need to learn grammatical English
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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
hot, fast
fork
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.