parenthesis

noun

pa·​ren·​the·​sis pə-ˈren(t)-thə-səs 

plural parentheses pə-ˈren(t)-thə-ˌsēz 

1

a

: an amplifying (see amplify sense 1) or explanatory word, phrase, or sentence inserted in a passage from which it is usually set off by punctuation

explained further in a parenthesis

b

: a remark or passage that departs from the theme of a discourse : digression

The speaker inserted some often amusing parentheses during his speech.

2

: interlude, interval

The parenthesis of war interrupted the course of his life.

3

: one or both of the curved marks ( ) used in writing and printing to enclose a parenthetical expression or to group a symbolic unit in a logical or mathematical expression

The plant's common name is followed by its Latin name in parentheses.

Synonyms

• discontinuity
• gap
• hiatus
• hiccup
• hiccough
• interim
• interlude
• intermission
• interregnum
• interruption
• interstice
• interval

Examples of parenthesis in a Sentence

Recent Examples on the Web

As Super Bowl 58, which will be the first ever staged in Las Vegas, approaches, here are my all-time Super Sunday game rankings (cardinal number, season noted in parentheses): 1. —Nate Davis, USA TODAY, 23 Feb. 2024

The number in parentheses is what percentage of ballots the candidate was on last year. —Houston Mitchell, Los Angeles Times, 15 Feb. 2024

Word History

Etymology

Late Latin, from Greek, literally, act of inserting, from parentithenai to insert, from para- + en- en- + tithenai to place — more at do

First Known Use

1548, in the meaning defined at sense 1a

Kids Definition

parenthesis

noun

pa·​ren·​the·​sis pə-ˈren(t)-thə-səs 

plural parentheses -thə-ˌsēz 

1

: a word, phrase, or sentence inserted in a passage to explain or comment on it

2

: one of a pair of marks ( ) used to enclose a parenthesis or to group units in a mathematical expression

parenthetic

ˌpar-ən-ˈthet-ik

adjective

or parenthetical

-ˈthet-i-kəl

parenthetically

-i-k(ə-)lē 

adverb