プラスα LinksSentence search for プラスαSentence search for プラスアルファSentence search for +αEdit in JMdict Expressions (phrases, clauses, etc.), Noun1. something extra; something on top; and then some; icing on the cakeWasei, word made in Japan, From English “plus alpha”. Wasei (word made in Japan)Other forms+α 【プラスアルファ】 Discussions Log in to talk about this word.