Honorific speech in Japanese
The Japanese language has a system of honorific speech, referred to as keigo , parts of speech one function of which is to show that the speaker wants to convey respect for either the listener or someone mentioned in the utterance. Their use is widely seen in a variety of business or formal social situations. Honorifics in Japanese can also be used to show unfamiliarity, or they can be used to show that the speaker is cultured and sophisticated enough to have mastered the ins and outs of the system. Japanese honorific titles, often simply called honorifics, consist of suffixes and prefixes when referring to others in a conversation.
Source: Wikipedia
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