This is the 1766th most frequent Arabic word.
إسرائيلي
"Israeli" – relating to Israel or its citizens.
Here, the word 'إسرائيلي' (Israeli) is used as an adjective to describe the nationality of the researcher.
التقى محمد بباحث إسرائيلي في المؤتمر.
Mohammad met an Israeli researcher at the conference.
In this case, 'إسرائيلي' is used to denote the national identity of the football team.
المنتخب الإسرائيلي لكرة القدم لعب مباراة قوية.
The Israeli football team played a strong match.
Here, 'الإسرائيليين' is the plural form of 'إسرائيلي', used as a noun to refer to individuals of Israeli nationality.