registration / a record or entry / (Internet) a subscription on a platform like YouTube

to register / to record an entry / (Internet) to subscribe on a platform like YouTube

(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.

new, novel / latest, recent / modern / fresh

(archaic) new, novel / (archaic) latest, recent / (archaic) modern / (archaic) fresh

(obsolete) Alternative spelling of 新たし (aratashi): new, novel

(obsolete) Same as あたらし (atarashi) above

(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

(aviation) economy class

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