"An Arab, in the modern sense of the word, is one who is a national of an Arab state, has command of the Arabic language, and possesses a fundamental knowledge of Arab tradition, that is, of the manners, customs, and political and social systems of the culture." ~ Habib Hassan Touma
The Arab League states:
An Arab is a person whose language is Arabic, who lives in an Arabic-speaking country, and who is in sympathize with the aspirations of the Arabic-speaking peoples.
Therefore an Arab is NOT and NEVER has been a single nationality nor a single people.
He/she is anyone who comes from any of the 22 countries/members of the League of Arab States, namely Algeria, Bahrain, Comoros, Djibouti, Egypt, Iraq, Jordan, Kuwait, Lebanon, Libya, Mauritania, Morocco, Oman, Palestine, Qatar, Saudi Arabia, Somalia, Sudan, Syria, Tunisia, the United Arab Emirates and Yemen.
However, it is more accurate to specify the country when talking about ethnicity or nationality, e.g. Algerian, Bahraini, Egyptian, Iraqi, Jordanian, Kuwaiti, Lebanese, Libyan, Moroccan, Omani, Palestinian, Qatari, Saudi, Somalian, Sudanese, Syrian, Tunisian, Emirati, Yemeni or whatever is appropriate.
People from Iran, Israel, Turkey, India, Pakistan and Afghanistan are NOT Arabs, they are called Persians (or Iranis), Israelis, Turkish (Turks), Indians, Pakistanis and Afghans (or Afghanis or Afghanistanis), respectively.
The word/term "Arab" should not be confused with the word/term "Muslim" because not all Muslims are Arabs as well as not all Arabs are Muslims, there are Christian and Jewish Arabs.
Arabs do not really look Bin Laden-ish characters, like those ugly group of terrorists, suicide bombers, war mongers, belly dancers, billionaire and greedy oil sheikhs as seen on tv/movies, as they can be black or blond haired with blue eyes or tanned/dark (believe me!).
They are not only oil traders or nomadic people of the desert with a caravan of camels gliding across the sands. They are beautiful, nice and interesting people who had given us many innovations from coffee to windmill and many modern surgical instruments and contributed a lot to the world civilization, science, literature and more.
This is a revised version of "Arabs, Who are They?" that was originally posted on my Multiply account.