French Person
Frenchman
noun
フランス is "France." So what is a "France person?" That would be a French Person.
ふらんすじん
フランスじん
Often times, when two kanji come together to form a kanji compound (or jukugo), you use the on'yomi readings. This is similar to that, though instead of another kanji it's a foreign word. This pattern works with almost any country as well. Just add 人 to a country name and you've described the people who live there. You'll see more of these before you're finished here.
And since 人 has two on'yomi readings, here's a mnemonic to help you remember which one to use:
As with all words for nationalities, the 人 here is pronounced じん. Like people of all other nationalities, a French person loves their jeans (じん) too!
フランス人のゆうじんができました。
I made a French friend.
二人はアメリカ人で、あとの三人はフランス人です。
Two of them are American and the other three are French.
とてもセクシーなフランス人シェフにあった。
I met a very sexy French chef.