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• AST
  AST

  Atlantic Standard Time. standard time
• -ast
  -ast

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

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

See Examples For:

AST

Wall Street is no help when thinking about what to do with AST stock.

From Barron's ● Oct. 14, 2026

Shares of AST SpaceMobile reached a recent high of over $133 in May of this year as the overall space sector saw a tailwind from SpaceX’s public listing.

From MarketWatch ● Oct. 13, 2026

However, Potter pointed to one silver lining for AST SpaceMobile: SpaceX’s mobile-carrier ambitions could actually increase demand from traditional wireless carriers for AST’s services.

From MarketWatch ● Oct. 13, 2026

AST SpaceMobile was trading around $69 ahead of earnings.

From Barron's ● Aug. 11, 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 Marie Lebert