愛する
あいする · aisuru · JLPT N3 · verb-suru
to love
❤️ 愛 (ai, love) + する (to do) = to do love; ai sounds like I, as in I love
愛 is the Sino-Japanese word for love, read ai. Adding する, the verb to do, turns the noun into a verb, so 愛する literally means to do love. The reading ai sounds like the English I, which gives you I love.