polite form of ござる (gozaru) [godan], the humble form of the copula, ある (aru) / (humble, formal) to exist, to be, to have

astronomical (relating to astronomy) / astronomical (vast)

astronomy

(colloquial) current boyfriend

everything

(slang) Alternative form of 彼氏 (kareshi, “boyfriend”)

everyone, one and all

research & development; R&D

(education) research project, done by Japanese schoolchildren during summer break, to be presented upon return to school

a research student (i.e. a visiting or non-matriculating graduate student) / a researcher