In Japanese, “tsuki” (月) primarily means “moon.” It can also refer to the concept of “month” in certain contexts, as the word for month is derived from the same character. The term can be used in various expressions and compounds related to time, nature, and culture. For example, “tsuki” is often used in poetry, literature, and art to evoke feelings of beauty and serenity associated with the moon. Additionally, “tsuki” can appear in names of lunar phases or in phrases relating to the moon, such as “tsuki no hikari” (moonlight).