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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.

This incident is a setback for AST SpaceMobile’s goal of 45 satellites by late 2026, aiming for commercial service this year.

From Barron's • Apr. 20, 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

What’s Next: While AST SpaceMobile currently has six satellites in orbit, it is targeting approximately 45 orbital satellites by the end of 2026 to offer a commercial service in northern latitudes.

From Barron's • 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