AST

¹ American  

Or A.S.T.,

1. Atlantic Standard Time. standard time

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-ast ² American  

1. a suffix of nouns that denote a person who practices or is concerned with something, or holds certain principles, doctrines, etc.: ecdysiast;

   enthusiast;

   ecdysiast;

   gymnast.

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AST British  

abbreviation

1. Atlantic Standard Time

2. automated screen trading (in securities)

3. education advanced skills teacher

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Etymology

Origin of -ast

A variant of -ist ( def. ) after the vowel i ; from Greek -astēs

Example Sentences

The good news for AST SpaceMobile is that the Federal Communications Commission has given the nod for its planned direct-to-device satellite internet plan.

From Barron's • Apr. 22, 2026

AST SpaceMobile shares were up 4.7% at $83.80 in early trading.

From Barron's • Apr. 22, 2026

The rocket was carrying an AST satellite intended for low earth orbit that would be used for mobile phone connectivity.

From BBC • Apr. 20, 2026

AST SpaceMobile's share price fell by more than 6% on Monday.

From BBC • Apr. 20, 2026

This led to a thorough familiarity with the European PC distribution business, and he worked then as AST Research's first European sales manager.

From Interviews (1998-2001) by Lebert, Marie