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Synonyms

jointly

American  
[joint-lee] / ˈdʒɔɪnt li /

adverb

  1. together; in combination or partnership; in common.

    My brother and I own the farm jointly.


Other Word Forms

  • quasi-jointly adverb

Etymology

Origin of jointly

Middle English word dating back to 1300–50; joint, -ly

Explanation

When more than one person or group works on something together, they do it jointly. A jointly researched and written term paper should have both the authors' names on the first page. If you and your best friend buy a car together, you do it jointly, and if your whole family chips in to fund your cousin's trip to India, you contribute jointly. You might hear that your favorite radio program is jointly supported by a few local businesses, or read in a poetry magazine that it's jointly edited by two people. Earlier, the preferred word was joinly, though jointly comes from joint and its sense of connection.

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

For 2025, the standard deduction is $15,750 for single people or married people filing separately, $31,500 for married filing jointly or a qualifying surviving spouse, and $23,625 for a head of household.

From MarketWatch • Apr. 11, 2026

France’s TotalEnergies said a refinery complex jointly owned with Saudi Aramco was shut down after sustaining damage this week.

From The Wall Street Journal • Apr. 10, 2026

The paper's then editor-in-chief, Dmitry Muratov, jointly won the Nobel Peace Prize in 2021 for his "efforts to safeguard freedom of expression" at the helm of the paper.

From Barron's • Apr. 9, 2026

A record five times, including last year, he has held the first-round lead and on nine occasions has led or jointly led the game's most glamorous tournament.

From BBC • Apr. 6, 2026

Otto Brahe died on 9 May 1571, just 58 years old, and left his main property at Knudstrup jointly to his two eldest sons, Tycho and Steen.

From "The Scientists" by John Gribbin