及其 Traditional form: 及其 Pinyin (reading): jíqí Definitions: (conjunction linking two nouns) and its ...; and their ...; and his ...; and her ... Characters: 及 - to extend; to reach; and; in time 其 - his, her, its, their; that Traditional characters: 及 - to extend; to reach; and; in time 其 - his, her, its, their; that