• 仏教ぶっきょう — Buddhism
• 仏像ぶつぞう — statue of Buddha
• 仏国ふっこく — France
• 仏様ほとけさま — the Buddha / deceased person
• 仏壇ぶつだん — Buddhist altar
• 仏和ふつわ — French-Japanese (dictionary, etc.)

仏 combines 亻 (person) with 厶 (phonetic). It originally described a revered figure, later associated with the Buddha. It also functions as the country abbreviation for France, similar to 米 for the U.S.

仏教ぶっきょうに 興味きょうみがあります。
I’m interested in Buddhism.

祖父そふは 仏様ほとけさまになりました。
My grandfather passed away. (literally: became a Buddha)