Practice JLPTMeaning
螺 (つぶ, Tsubu) is Whelk — a Japanese food (water animals).
What is Whelk?
Tsubu means "whelk", which is a common name that is applied to various kinds of sea snail. In Japan, whelks are frequently used in sashimi and sushi. Left: ma-tsubu[?] Middle: tōdai-tsubu [?] Right: iso-tsubu [?]