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Synonyms

A1

British  
/ ˈeɪˈwʌn /

adjective

  1. in good health; physically fit

  2. informal first class; excellent

  3. (of a vessel) with hull and equipment in first-class condition

"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

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.

Defence Minister Mykhailo Fedorov has championed the use of advanced technology to fend off Russian attacks, including launching the Defense AI Center A1.

From Barron's • May 15, 2026

Although essentially similar to the fuel used in Europe, Jet A1, it has a higher freezing point, and is not currently permitted in the UK.

From BBC • Apr. 21, 2026

The pair, formally known as A1 and A0, are the oldest birds from their release cohort at nearly 7 years old — and the only ones old enough to reproduce.

From Los Angeles Times • Mar. 5, 2026

In January, he travelled to Cardiff to take the A1 Welsh-language exam, which tests reading, writing, listening and speaking.

From BBC • Feb. 8, 2026

When Kamen’s turn came, he recalled, “I embarrassedly asked if permission had been obtained from E.O.L. for people such as A1 and myself to be approached.”

From "Big Science" by Michael Hiltzik

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