Definition of A1
1 : having the highest possible classification —used of a ship
2 : of the finest quality : first-rate
Examples of a1 in a sentence
The car's in A1 condition.
an A1 mom deserves only the very best Mother's Day card
First Known Use of a1
A1 Defined for English Language Learners
Definition of A1 for English Language Learners
: very good or excellent
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Thesaurus: All synonyms and antonyms for A1
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