The word Muslim comes from the word Islam which means submission. A Muslim in the language of the Quran is the one who has submitted himself to the commands of Allah, ready to obey Him, and move away from associating partners with Him and its people.
The word Daar means an abode where one finds convenience and rest temporarily or permanently.
A rasool is someone who is sent to deliver a message. Allah has sent us messengers througout the ages to teach us how to worship Him.
Who are the few? Allah mentions them in the Quran
Dhikr means to remember or mention. Allaah says to remember Him and He will remember you.
Rizq means provision. Everything that we have has been provided to us by Allaah.