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

Satellite maker Sidus Space gained nearly 19% and shares of AST SpaceMobile rose by 10%.

From BBC • Mar. 25, 2026

AST SpaceMobile was rising 13% to $105.11 in early trading.

From Barron's • Mar. 4, 2026

Another key determining factor is likely to be whether AST SpaceMobile can get its satellites into orbit quickly enough to establish a commercial foothold before its giant rival catches up.

From Barron's • Mar. 4, 2026

If all goes according to plan, that would mean AST SpaceMobile is operating in key markets ahead of its rival.

From Barron's • Mar. 4, 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