an aquatic shellfish (generally limited to mollusks with calcareous shells such as clams or snails, and excluding crustaceans such as shrimp or crabs)

a male diver

a male given name

search, look for

a sea, an ocean / a lake / (figuratively) an object covering over a large area, as in 血の海 (chi no umi, “pool of blood”) or 火の海 (hi no umi, “sea of fire”)

Babylonia japonica: the Japanese babylon or Japanese ivory shell

shell / shellfish

中々: very, quite, considerably, rather, by no means (with negative verb)

the daytime, during the day / a half day, half of a day

inside