fast: meaning and words from its letters
4 letters · 7 letter points · starts with F · ends with T
Meaning of fast
adj
Firm against attack; fortified by nature or art; impregnable; strong.
Steadfast, with unwavering feeling. (Now mostly in set phrases like fast friend(s).)
Moving with great speed, or capable of doing so; swift, rapid; light.
Example: I am going to buy a fast car.
Moving with great speed, or capable of doing so; swift, rapid; light. Having a kinetic energy between 1 million and 20 million electron volts; often used to describe the energy state of free neutrons at the moment of their release by a nuclear fission or nuclear fusion reaction (i.e., before the neutrons have been slowed down by anything).
Example: Plutonium-240 has a much higher fission cross-section for fast neutrons than for thermal neutrons.
Listed forms: faster, fastest.
Source: Wiktionary — fast.
noun
- UK
A train that calls at only some stations it passes between its origin and destination, typically just the principal stations.
Listed forms: fasts.
Source: Wiktionary — fast.
adv
In a firm or secure manner, securely; in such a way as not to be moved; safe, sound .
Example: Hold this rope as fast as you can.
Deeply or soundly .
Example: The princess was sleeping fast, and her servants were fast asleep too.
Immediately following in place or time; close, very near .
Example: The horsemen came fast on our heels.
Quickly, with great speed; within a short time .
Example: Do it as fast as you can.
Listed forms: faster, fastest.
Source: Wiktionary — fast.
Adapted from Wiktionary contributors via Kaikki.org. Selected senses and forms; quotations omitted. Definition text is CC BY-SA 4.0.
Synonyms by meaning
Words are grouped by sense, so they are not necessarily interchangeable in every context. Search synonyms for fast.
adjective
unrestrained by convention or morality
adjective
hurried and brief
adjective
securely fixed in place
adjective
unwavering in devotion to friend or vow or cause
Open English WordNet Team, 2025, derived from Princeton University WordNet; selected synonym groups under CC BY 4.0. Source · OEWN notice · Princeton notice.
Is fast in our word lists?
| Word list | Status |
|---|---|
| American English | Found |
| British English | Found |
| Extended English | Found |
These are spelling-list matches, not official game validity checks. Check the rules and dictionary used by your game.
Letter-value score of fast
F(4) + A(1) + S(1) + T(1) = 7 points.
This is a sum of letter values without board bonuses or word multipliers. A blank tile is worth zero: subtract the value of each letter supplied by a blank. The score does not establish game validity. Full letter-value table.
Anagrams of fast
1 other standard-list word uses exactly these letters, including repeated letters.
Shorter words from fast
7 shorter standard-list words can be made using no letter more often than it occurs in fast. Showing up to 24, longest first.