They are all brackets.
( ){ }[ ]〈 〉 in English:
- ( ) round brackets or Parentheses
- { } curly brackets or Braces
- [ ] square brackets or Brackets
- <> angle brackets or Chevrons
( ){ }[ ]〈 〉 in Chinese:
- ( ) 小括号
- { } 大括号
- [ ] 中括号
- <> 尖括号
Chinese is not that there are no other names for these symbols, but that these are the most commonly used.
For example "()" can be called "圆括号", "{}" can be called "花括号", "[]" can be called "方括号", ……
Chinese tends to distinguish the first three kinds of brackets with big, middle and small, but the fourth kind of brackets has only one name.
References:
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