EST

¹ American  

Or E.S.T.,

abbreviation

1. Eastern Standard Time.

---

-est ² American  

1. a suffix forming the superlative degree of adjectives and adverbs.

   warmest; fastest; soonest.

---

-est ³ American  

1. a native English suffix formerly used to form the second person singular indicative of verbs.

   knowest; sayest; goest.

---

est. ⁴ American  

abbreviation

1. established.

2. estate.

3. estimate.

4. estimated.

5. estuary.

---

EST ¹ British  

abbreviation

1. Eastern Standard Time

2. electric-shock treatment

3. Estonia (international car registration)

---

est ² British  

abbreviation

1. Also: estab.  established

2. estimate(d)

---

-est ³ British  

suffix

1. forming the superlative degree of adjectives and adverbs

   shortest

   fastest

---

-est ⁴ British  

suffix

1. forming the archaic second person singular present and past indicative tense of verbs

   thou goest

   thou hadst

---

est ⁵ British  

/ ɛst /

noun

1. a treatment intended to help people towards psychological growth, in which they spend many hours in large groups, deprived of food and water and hectored by stewards

---

Etymology

Origin of -est²

Middle English; Old English -est, -ost. Compare Greek -isto-

Origin of -est³

Middle English; Old English -est, -ast, -st, 2nd person singular present indicative endings of some verbs ( -s earlier verbal ending + -t, by assimilation from thū thou ¹ ) and 2nd person singular past endings of weak verbs (earlier -es + -t )

Compare meaning

How does est compare to similar and commonly confused words? Explore the most common comparisons:

• CDT vs. EST
• EST vs. EDT
• PST vs. EST
• CST vs. EST

Example Sentences

EST, Terraform withdrew 150 million TerraUSD from the Curve3pool, a liquidity pool where stablecoins—typically dollar-pegged cryptocurrencies—could be exchanged one for the other.

From The Wall Street Journal • Feb. 23, 2026

EST on Thursday, Feb. 12, and 5:15 a.m.

From Science Daily • Feb. 2, 2026

US fans can watch it at 20:00 EST on 31 December, and for a big-screen, communal experience, they can see it in 500 cinemas across the US and Canada.

From BBC • Dec. 23, 2025

EST in the Barus & Holley engineering and physics building, a space crowded with students preparing for final exams.

From Salon • Dec. 14, 2025

EST, the Atlas rocket boosted Friendship 7 into orbit like a champion archer hitting a bull’s-eye.

From "Hidden Figures" by Margot Lee Shetterly