The word for "kiss" in Japanese is キス (kisu), a direct borrowing from the English term. It is commonly used in modern conversation and is understood across various contexts, from romantic to casual mentions. For example, you might say キスしたい (kisu shitai) to mean "I want to kiss." A more traditional and poetic term for "kiss" is 接吻 (seppun), which conveys the same meaning but is rarely used in daily conversation, often appearing in literature or formal contexts. Additionally, phrases like 口づけ (kuchizuke), literally "touching of lips," offer an elegant or old-fashioned way to describe a kiss. Each term carries different nuances, with キス being contemporary and straightforward, while 接吻 and 口づけ feel more formal or romantic, making it possible to tailor the expression to the situation or tone you wish to convey.