貝殻（かいがら、kaigara）
- shell

The Japanese word 貝殻, pronounced かいがら (kaigara), means "seashell" or "shell." It refers to the hard, protective outer covering of various marine creatures, primarily mollusks like clams, oysters, snails, and mussels. 貝殻 can also refer to the shed exoskeleton of other creatures like certain crustaceans.

⚫︎浜辺で美しい貝殻を見つけた。 Translation: I found a beautiful seashell on the beach. ⚫︎子供たちは貝殻を集めて遊んでいる。 Translation: The children are playing by collecting seashells. ⚫︎貝殻のコレクションが趣味です。 Translation: Collecting seashells is my hobby.

You can use 貝殻 when talking about seashells in general. It's suitable in various contexts, from describing a beach scene to discussing a craft project using seashells. It is a common and everyday word.

⚫︎The word 貝殻 is typically written in kanji as 貝殻. ⚫︎The reading is かいがら (kaigara). ⚫︎There are no significant variations in writing.

⚫︎There aren't many direct synonyms, as the concept is very specific. However, depending on context: ⚫︎巻貝 (makigai): Sea snail shell ⚫︎二枚貝 (nimai gai): Bivalve shell (like clams)

There aren't specific antonyms as it is a concrete noun. The creatures themselves might be considered the opposite in a sense, but there isn't a direct antonym for 貝殻.

夏休みに海に行って、たくさんの貝殻を拾った。 ・Translation: I went to the beach during summer vacation and picked up many seashells. ・Explanation: This sentence describes the action of collecting seashells during a summer vacation, showing its common usage in a leisurely context.

この貝殻はとても珍しい形をしている。 ・Translation: This seashell has a very unusual shape. ・Explanation: This sentence uses 貝殻 to describe a specific seashell, emphasizing its unique form.

⚫︎貝 (kai) means "shellfish" or "shell." ⚫︎殻 (kara) means "shell" or "husk." ⚫︎Therefore, 貝殻 is a compound word that literally means "shell shell," denoting the shell of a shellfish.