first class (a status, section, etc. of premier rank)

(dialectal) for the first time

for the first time

for the first time, first

(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.

an airplane, aeroplane / (obsolete) Clipping of 空中飛行機 (kūchū hikōki): a flying machine

(baseball, softball) Synonym of 一塁 (ichirui, “first base”) / (baseball, softball) Synonym of 一塁手 (ichiruishu, “first baseperson”) / (Anglicism, attributive) first

Clipping of ファーストフード (fāsuto fūdo, “fast food”).

(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

to get on/ride (a bus, a train, a bicycle); to get in (a car); to mount (a horse) / to accept one's talk; to get on board