Brackets [] When to Use Brackets in English

What are brackets? What are [] called? Learn how and when to use brackets in English with usefulpunctuation rulesand example sentences.


What Are Brackets?

A pair of brackets, or [], is atype of punctuationused to hold extraneous information within aquotation. Unlike otherparentheticalforms, such as () or <>, brackets are only used within quotations. They will typically enclose words or phrases that help clarify and aid understanding of the subject matter, but can also be removed from the sentence without altering the meaning or causing confusion.

Learn more with the difference betweenbrackets and parentheses.

When to Use Brackets

Brackets are used to convey additional text to the reader within a quotation. This information can take many forms.

(1) To help clarify information about the subject or subject matter

Brackets will often be used to add details about a subject’ s identity or role, or give supplementary information about the subject.


  • “She [Jane] wasn’t so sure about the plan,” Bill said.

Here, Bill said in reality, “She wasn’t so sure about the plan.” However, the reader is unaware of the identity of the “she” spoken about. [Jane] is inserted into the quote to inform the reader of her identity.


Original Quote:

  • “John didn’t get the game today. He was planning to get it tomorrow during his lunch break.”

Shortened Quote with Brackets:

  • “他是打算把它明天大调的(游戏)ing his lunch break.”

[The game] here explains what “it” is to the reader. It gives context and pertinent information to the sentence without requiring the addition of the entire backstory. For this reason, brackets are extremely useful when citing small parts of a quote in your written material.

(2) To note any translation for material quoted in a foreign language

At times, quotations may include information in other languages. The quote should be recorded with the foreign language for accuracy, but a translation may be included alongside within brackets.


  • “The only French I spoke in Paris wasparlez-vous anglais[Do you speak English]”.

(3) To notategrammatical errors

When copying a quotation, it is important to do so accurately. That means one must include grammatical errors, misspellings, and other incorrect information to preserve the character and legitimacy of the quote. However, when these inaccuracies make the quote difficult to understand, [sic] is inserted after the mistake to note the error.Sicis a Latin word from the phrase “sic erat scriptum”,which means “thus it was written”. Its presence in a quote means that this quote was written exactly as such. The reader then understands to read the incorrect material as a mistake.


  • 他说,“它比[来到我的房子,sic] went to hers.”

Although he said “than” rather than the correct “then”, the presence of [sic] tells the reader to read the phrase as “It came to my house and then went to hers”, which is what he meant to say.

(4) To change the punctuation to maintain contextual accuracy

In a perfect world, all quoted material would have proper punctuation, have noextraneousinformation, and be contextually accurate. In reality, quoted material often starts in the middle of a sentence and speakers do not always pronounce the whole word. When these things happen, brackets are used to make the grammar and punctuation accurate with the rest of the passage.


Original Quote:

  • “He wasn’t sure about all the details, but most of the general points seemed alright. Mainly, John just wanted an easy class with little to no homework, no mandatory attendance, and no exams.”

The following sentence uses quoted material from the above quotation.

  • Although “[h]e wasn’t sure about all the details”, John was pretty certain that it would be an easy class.

Here, brackets are used to keep punctuation within the quote consistent with the rest of the sentence. In a scenario such as this one, in which quotedmaterialremains unchanged, it is unnecessary to insert brackets after the original word. In other words, unlike case (1), in which correct formatting requires something in the form of “she [Jane]”, something like “H[h]e” would not be used. Instead, new punctuation replaces the original quotation as needed.

When brackets are used, the reader understands that the following information is a side note or outside comment. Brackets are not part of the original quotation, but are used by a third-party source (understood to be a narrator) to help clarify to the reader any inconsistencies or relevant information needed to better understand said quote.

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Last Updated on April 2, 2021

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