AST
1 Americanabbreviation
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Atlantic Standard Time
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automated screen trading (in securities)
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education advanced skills teacher
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.
On one hand, SpaceX’s IPO could bring more attention to the space trade, boosting trading activity and volatility for companies like AST SpaceMobile as investors seek “sympathy” trades, Mazza told MarketWatch via email.
From MarketWatch • Apr. 8, 2026
Satellite maker Sidus Space gained nearly 19% and shares of AST SpaceMobile rose by 10%.
From BBC • Mar. 25, 2026
AST SpaceMobile’s army of fervent retail trader fans will be hoping that by then, their own company’s satellites are already tracing their own celestial path.
From Barron's • Mar. 4, 2026
AST SpaceMobile was rising 13% to $105.11 in early trading.
From Barron's • Mar. 4, 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
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.