Korean Honorifics
The Korean language reflects the important observance of a speaker or writer's relationships with both the subject of the sentence and the audience. Korean grammar uses an extensive system of honorifics to reflect the speaker's relationship to the subject of the sentence and speech levels to reflect the speaker's relationship to the audience. Originally, the honorifics expressed the differences in social status between speakers. In contemporary Korean culture, honorifics are used to differentiate between formal and informal speech based on the level of familiarity between the speaker and the listener.
Read more about Korean Honorifics: Honorific Nouns, Honorific Verbs, Honorific Forms of Address