ブーム Common word JLPT N1 LinksSentence search for ブームEdit in JMdict Noun, Noun, used as a suffix1. boom; craze; fadこがたしゃ小型車のブームはお終わろうとしている。The small car boom is ending.Noun, Noun, used as a suffix2. (economic) boomNoun3. boom (of a boat)Noun4. (microphone) boomWikipedia definition5. Boom Discussions Log in to talk about this word.