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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

Derived 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.

Now, it is preparing to add customers requesting more than 4,000 megawatts of service—and an additional 19,000 megawatts of requests are waiting in a queue, more than twice the system’s peak demand.

From The Wall Street Journal • Jun. 4, 2026

The Russell Microcap Index comprises the smallest 1,000 companies in the Russell 3000, but can include additional stocks among those in the Russell 2000.

From MarketWatch • Jun. 4, 2026

“Law enforcement is on campus, and as this is an active investigation we have no additional information to share at this time,” the spokesperson said in a statement.

From Los Angeles Times • Jun. 4, 2026

Adnoc’s Al Jaber said the company had secured additional supplies for Asian customers and was expanding and restocking oil storage to protect against future shocks.

From The Wall Street Journal • Jun. 4, 2026

And then, of course, he’d play speed games for an additional five or more hours with the Collins cluster or at one of the clubs.

From "Endgame" by Frank Brady

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