A Palestinian can mean a person who is born in the geographical area known prior to 1948 as Palestine, or a former citizen of the Mandatory Palestine, or an institution related to either of these. Before the establishment of Israel, the meaning of the word Palestinian didn't discriminate on ethnic grounds, but rather referred to anything associated with the region, which in the Mandate for Palestine definition briefly included the area which today is Jordan. Until the creation of the state of Jordan in 1922, pursuant to the Faisal-Weizmann Agreement, the area broadly to the west of the Jordan River was designated for Jewish Palestine and the area east of the Jordan River for Arab Palestine. The local newspaper, founded in 1932 by Gershon Agron, was called The Palestine Post. In 1950, its name was changed to The Jerusalem Post. In 1923, Pinhas Rutenberg founded the Palestine Electric Company, Ltd.. There was a Jewish Palestine Symphony Orchestra, and in World War II, the British assembled a Jewish Brigade, to fight the Axis powers, that was known as the Palestine regiment. Since the establishment of Israel, its citizens are called Israelis, while the term Palestinians usually refers to the Palestinian Arabs.
The term "Palestinian" has sometimes been used to refer to a person whose ancestors are originally from the territory corresponding to Mandatory Palestine. This definition includes the inhabitants of the West Bank, the inhabitants of the Gaza Strip, Arab citizens of Israel, the Israeli Jews whose ancestors were living there prior to the onset of Zionist immigration, ethnic Jews in Europe, North Africa, and the Middle East whose roots are predominantly Palestinian and the communities of Palestinian refugeesall over the world. UNRWA defines the Palestinian refugees as those whose normal place of residence between June 1946 and May 1948 was in the land that is now Israel, but they went outside during the 1948 war. UNRWA, however, provides aid to Palestinian refugees defined as such, as well as the descendants of those Palestinians. UNRWA does define "Palestinian refugees" to include descendants of "refugees". The Jewish Virtual Library uses a similar but slightly narrower definition: "Although anyone with roots in the land that is now Israel, the West Bank and Gaza is technically a Palestinian, the term is now more commonly used to refer to Non-Jew Arabs with such roots... Most of the world's Palestinian population is concentrated in Israel, the West Bank, the Gaza Strip and Jordan, although many Palestinians live in Lebanon, Syria and other Arab countries."
By ethnic origin
Referring to the Arab subculture of the southern Levant
The word "Palestinian" is occasionally used by ethnographers and linguists to denote the specific Arab subculture of the southern Levant; in that sense, it includes not only the Arabs of British Mandate Palestine, but also those inhabitants of Jordan who are originally from Palestine and the Druze, while excluding both Bedouin and ethnic minorities such as the Dom and the Samaritans. However, some of this definition is not accepted. The Samaritans of the West Bank are usually referred to as Palestinian.
Referring to Jews in an ethnic rather than religious sense
The term "Palestinian" used to refer to Jews in Europe who were regarded as an alien presence, usually as reference to their ancestral origins in the Levant. For example, Immanuel Kant referred to European Jews as "the Palestinians living among us".
Common usage
The term "Palestinians" tends mainly to be used as a short form for the Palestinian people, defined as equivalent to Palestinian Arabs, i.e., an Arabic-speaking people descended from the people who have lived in Palestine over the centuries. This usage may be intended to imply that other residents of Palestine, particularly Palestinian Jews, are not Palestinians.