Meaning
真鰯 (まいわし, Ma-iwashi) is Sardine, a Japanese food.
What is Sardine?
Iwashi means "sardine", and the term covers a range of species. "真鰯" refers to Sardinops melanostictus (Pacific sardine, etc), a commonly caught species. This word can be written as "真鰮". Depending on the sardine's size, they are given different names: Romaji Kana Approximate Adult Size hirago ヒラご 2-3 cm koba コバ 10 cm chūba チュウバ 15 cm ōba オオバ 20 cm