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

AST SpaceMobile shares fell 11% on Tuesday and extended their losses in early trading on Wednesday.

From MarketWatch • Apr. 15, 2026

New Glenn could launch again as soon as Friday, a flight set to carry a satellite developed by Texas-based AST SpaceMobile, which would help Blue Origin chip away at a yearslong backlog of orders.

From The Wall Street Journal • Apr. 15, 2026

AST SpaceMobile already has partnership with mobile network operators and plans to deliver a commercial service in 2027, assuming that it can meet its launch requirements.

From MarketWatch • Apr. 15, 2026

AST SpaceMobile is racing to get enough satellites into space to deliver 5G-quality voice, data, and video coverage to cellphones anywhere in the world.

From Barron's • Apr. 2, 2026

His other computer, an AST 386SX with 330 MB of storage was the one his recruits called with reports.

From Terminal Compromise: computer terrorism: when privacy and freedom are the victims: a novel by Schwartau, Winn