亀甲括弧きっこうかっこ Noun English jmdict 1 noun (common) (futsuumeishi) tortoiseshell bracket (punctuation mark) 〔 〕
括弧かっこ Common Noun Irregular Transitive English jmdict 1 noun (common) (futsuumeishi) noun or participle which takes the aux. verb suru transitive verb word usually written using kana alone brackets;parentheses カッコ内の言葉を短縮形にしなさい。 Put the words in parentheses into abbreviated form.