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Synonyms

additional

American  
[uh-dish-uh-nl] / əˈdɪʃ ə nl /

adjective

  1. added; more; supplementary.

    additional information.


additional British  
/ əˈdɪʃənəl /

adjective

  1. added or supplementary

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of additional

First recorded in 1630–40; addition + -al 1

Explanation

If your parents get you a cell phone and add it to their plan as an additional line, they are adding one more line to their bill, so additional means another or one more. Even though they added an additional line to their plan, your parents might ask you to pay for the additional charges. That means they will see how much more your phone usage adds to their plan, and will charge it back to you. If you complain, they might say to avoid additional conflict, you can just get your own plan and pay all of the bills!

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Vocabulary lists containing additional

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.

Markets will look for further insight into policymakers’ thinking on whether additional tightening may be needed.

From The Wall Street Journal • Jun. 26, 2026

“Emergency personnel responded to the incident, which remains under investigation. No additional information is available at this time,” the spokesperson wrote.

From Los Angeles Times • Jun. 25, 2026

Our view was that if we could get 15 years, and then additional years of monitoring and verification, we would know what Iran was doing and could take action if necessary.

From Barron's • Jun. 25, 2026

Iranian authorities ordered at least three oil tankers transiting the Strait of Hormuz to turn back, and two additional ships appeared to reverse course as well, maritime intelligence company Windward said Thursday.

From MarketWatch • Jun. 25, 2026

“Make sure the teleporter did not do additional damage to his weak brain.”

From "Klawde: Evil Alien Warlord Cat" by Johnny Marciano and Emily Chenoweth

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