-sama

The Japanese language uses a broad array of honorific suffixes for addressing or referring to people. These honorifics attach to the end of people's names, as in lucy-san where the honorific -san was attached to the name lucy. These honorifics are often gender-neutral, but some imply a more feminine context (such as -chan) while others imply a more masculine one (such as -kun).

These are often used along with other forms of Japanese honorific speech, keigo, such as that used in conjugating verbs.

Although honorifics are not part of the basic grammar of the Japanese language, they are a fundamental part of the sociolinguistics of Japanese, and proper use is essential to proficient and appropriate speech. Significantly, referring to oneself using an honorific, or dropping an honorific when it is required, is a serious faux pas, in either case coming across as clumsy or arrogant.

They can be applied to either the first or last name depending on which is given. In situations where both the first and last names are spoken, the suffix is attached to whichever comes last in the word order.

An honorific is generally used when referring to the person one is talking to (one's interlocutor), or when referring to an unrelated third party in speech. It is dropped, however, by some superiors, when referring to one's in-group, or in formal writing, and is never used to refer to oneself, except for dramatic effect, or some exceptional cases.

Dropping the honorific suffix when referring to one's interlocutor, which is known as to yobisute (呼び捨て^?), implies a high degree of intimacy and is generally reserved for one's spouse, younger family members, social inferiors (as in a teacher addressing students in traditional arts), and very close friends. Within sports teams or among classmates, where the interlocutors approximately have the same age or seniority, it can be acceptable to use family names without honorifics. Some people of the younger generation, roughly born since 1970, prefer to be referred to without an honorific. However, dropping honorifics is a sign of informality even with casual acquaintances.

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Wikipedia