The word 机票 is formed by directly combining two meaningful characters: 机 (jī), which here signifies "aircraft", and 票 (piào), which means "ticket". It is a straightforward, logical compound where the first element specifies the type or category (aircraft) and the second element names the general object (ticket), resulting in the specific concept of an "airplane ticket". This mirrors the intuitive way many concrete Chinese nouns are constructed by joining a modifier with a core noun.