Ninna

Ninna is a term that can refer to several different things, primarily in the context of Japanese culture. Most commonly, it is a Japanese word meaning "sleep" or "nap." It is often used in a gentle or endearing way, particularly when referring to a child sleeping. For example, "O-ninna shite kudasai" translates to "Please sleep" or "Please take a nap."

Beyond its literal meaning, "ninna" can also be associated with the sounds a baby makes, particularly a sleepy or content baby. In some contexts, it might be used to describe a lullaby or a soothing sound meant to induce sleep.

In a more specific, though less common, usage, "Ninna" is also the name of a character in the popular mobile game "Arknights." This character is a healer with unique abilities within the game's lore and gameplay mechanics. The context in which "ninna" is encountered will typically clarify which meaning is intended.