twenty; 20

twenty years old

the twentieth day of the month / twenty days / Short for 二十日鼠 (hatsuka nezumi): a house mouse

two persons / a couple, pair / (poetic) the two of us, we two

pupil, educatee, student (especially in junior high schools (中学校) or high schools (高校) in Japan)

(software engineering) class diagram - A type of static structure diagram that describes the structure of a system by showing the system's classes, their attributes, and the relationships between the classes.

two, 2 / second

(education) class (group of students in a regularly scheduled meeting with a teacher) / class of things (typically products) sharing certain features / (programming, object-oriented programming) class

twenty-two; 22

twelve; 12