Jump to:

• 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

---

Etymology

Origin of -ast

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

Example Sentences

Now AST SpaceMobile’s main challenge is getting its fleet up and operational.

From Barron's • Apr. 22, 2026

The good news for AST SpaceMobile is that the Federal Communications Commission has given the nod for its planned direct-to-device satellite internet plan.

From Barron's • Apr. 22, 2026

AST said Sunday that the loss will be covered by insurance, but did not say how much it would cost.

From BBC • Apr. 20, 2026

The company, founded by Amazon billionaire Jeff Bezos, attempted to place a satellite from AST SpaceMobile using its New Glenn rocket but was unable to get it as far into orbit as intended.

From BBC • Apr. 20, 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