Simple Definition of parenthesis

from our Learner's Dictionary

parenthesis

noun

plural parentheses -θəˌsiːz How to pronounce parenthesis (audio)
: one of a pair of marks ( ) that are used around a word, phrase, sentence, number, etc.
usually plural
The plant's common name is followed by its Latin name in parentheses.

called also (British) bracket

Cite this Entry

“Parenthesis.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/parenthesis. Accessed 15 Jun. 2026.

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