as far as ... is concerned; in terms of ...

a target, a mark, a bullseye / an objective, an object (of doing something)

science / a field of study

school (institution dedicated to teaching and learning)

good night

abstention (the act of abstaining), nonparticipation

entrusting sale of a doujin work to another doujin circle at a doujin event when one cannot personally participate

admission ticket

participant (person)

(colloquial) current boyfriend