noun
megabank; major bank
Refers to a very large, systemically important bank, often one of the top-tier financial institutions in Japan (e.g., MUFG, SMBC, Mizuho).
日本のメガバンクは海外展開を加速している。
Japan's megabanks are accelerating their overseas expansion.
メガバンクに就職するのは競争率が高い。
Getting a job at a megabank is highly competitive.