private English school; English cram school
A private after-school or supplementary school focused on English language study, often for exam preparation or conversation practice.
He attends an English cram school after school.
At this private English school, native teachers teach.
Focuses on English conversation, often for adults, while 英語塾 is broader and often for school-age students.
Compound of 英語 (English) and 塾 (cram school, private tutoring school).