noun
short intensive course; crash course
Refers to a condensed educational program that covers a lot of material in a short period, often used for exam prep or skill acquisition.
夏休みに短期集中講座を受講して、資格を取った。
I took a short intensive course during summer vacation and got a qualification.
この学校では、TOEIC対策の短期集中講座を開講している。
This school offers a crash course for TOEIC preparation.