This is the 2136th most frequent Japanese word.
恋愛
Romantic love.
恋愛 is used to describe personal dispositions regarding romantic feelings or interactions.
彼は恋愛にあまり興味がない人だ。
He is a person not very interested in romantic relationships.
恋愛 is used to refer to the conceptual or general notion of romantic love or romantic relationship.
彼女は恋愛についてあまり話さない。
She doesn't talk much about love relationships.
恋愛 is used to focus on the emotional or contextual aspect of love in life situations.