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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


-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.


AST British  

abbreviation

  1. Atlantic Standard Time

  2. automated screen trading (in securities)

  3. education advanced skills teacher

"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

Etymology

Origin of -ast

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

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.

See Examples For:

The incident created delays for companies like AST SpaceMobile, which has booked New Glenn to deploy its direct-to-mobile communications satellites.

From The Wall Street Journal ● Sep. 22, 2026

AST SpaceMobile was trading around $69 ahead of earnings.

From Barron's ● Aug. 11, 2026

AST SpaceMobile said it now has 13 satellites in orbit after launching six spacecraft within 50 days.

From The Wall Street Journal ● Aug. 10, 2026

As of June 30, AST SpaceMobile said it had about $2.7 billion in cash and cash equivalents.

From MarketWatch ● Jul. 16, 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

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