"Kun" can mean different things depending on the gender. "Kun" for females is a more respectful honorific than "-chan", which implies childlike cuteness. "Kun" is not only used to address females formally; it can also be used for a very close friend or family member. Calling a female "-kun" is not insulting, and can also mean that the person is respected, although that is not the normal implication. Rarely, sisters with the same name, such as "Miku", may be differentiated by calling one "Miku"-chan"" and the other "Miku"-san"" or ""-sama"", and on some occasions ""-kun"". "Chan" and "-kun" occasionally mean similar things. General use of "-kun" for females implies respectful endearment, and that the person being referred to is sweet and kind.