ost

Not valid in Scrabble

It's a recognised English word, but it isn't in the official NASPA Scrabble word list.

Scrabble points
3
Words With Friends
3
Letters
3

Definition of ost

5 senses · 2 parts of speech

noun

  1. (alt-of, obsolete)Obsolete form of oast.
See all 5 definitions

noun

  1. (alt-of, obsolete)Obsolete form of oast.
  2. (abbreviation, alt-of, initialism)Initialism of original soundtrack.
    “I really like the OST of that game.”

name

  1. (abbreviation, alt-of, initialism)Initialism of Outer Space Treaty: a treaty that represents the basic legal framework of international space law, signed in 1967.
    “The most important source of space law is the 1967 Treaty on Principles Governing the Activities of States in the Exploration and Use of Outer Space, including the Moon and Other Celestial Bodies (OST).¹⁶ […] The OST is a product of the Cold War era when the United States and the Soviet Union—the only states with spacefaring capability—were bitter rivals, each fundamentally distrustful of the other.”
  2. (abbreviation, alt-of, initialism)Initialism of Open Skies Treaty.
  3. (UK, abbreviation, alt-of, historical, initialism)Initialism of Office of Science and Technology.

Definitions from Wiktionary, CC BY-SA.

Words you can make from ost

4 playable · top: SOT (3 pts)

Best play sot 3 points

2-letter words

3 words

Hooks

8 extensions · 8 front

A single letter you can add to ost to make another valid word.

Find your best play with ost

See every word you can make from a set of letters that includes ost, or browse word lists you can mine for high-scoring plays.