Meaning of the word parentheses in English

What does parentheses mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

parentheses

US /pəˈrɛnθəsɪs/
UK /pəˈrɛnθəsɪs/

Noun

1.

a word, clause, or sentence inserted as an explanation or afterthought into a passage with which it is not grammatically connected, usually marked off by brackets, dashes, or commas

Example:
The author used a parenthesis to add an extra detail.
The entire paragraph was a long parenthesis.
2.

either of a pair of round brackets ( ) used to enclose a word or phrase in a sentence

Example:
Please put the optional information in parentheses.
The numbers in parentheses refer to the page numbers.