The Japanese word 'kareshi' (彼氏) directly translates to 'boyfriend' in English. It is used to refer to a male romantic partner. The term is commonly used in casual conversation and written communication. Understanding the nuances of the term allows for better communication and understanding within Japanese culture. Kareshi can also be used to describe someone's significant other, but generally only for male partners. This understanding of the meaning will allow one to be better prepared when speaking the language.