noun
English, math, and Japanese (school subjects)
Abbreviation used in educational contexts to refer collectively to the three core academic subjects: English, mathematics, and Japanese.
高校入試では英数国が重視される。
English, math, and Japanese are emphasized in high school entrance exams.
塾で英数国の三教科を教えています。
I teach the three subjects of English, math, and Japanese at the cram school.
Mathematics as a school subject, not the combined abbreviation.
Japanese language as a school subject, not the combined abbreviation.
Abbreviation formed from the first kanji of 英語 (English), 数学 (mathematics), and 国語 (Japanese language).