fast
/fæst/ adjective A1- Firmly or securely fixed in place; stable. · That rope is dangerously loose. Make it fast!
- 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. · I am going to buy a fast car.
- 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). · Plutonium-240 has a much higher fission cross-section for fast neutrons than for thermal neutrons.
- Of a place, characterised by business, hustle and bustle, etc.
- Causing unusual rapidity of play or action. · a fast racket, or tennis court· a fast track
- Able to transfer data in a short period of time.
Comparative faster · Superlative fastest
Phrasal verbs and expressions
From the library
So he sprang into the water, and the Tin Woodman caught fast hold of his tail.
They walked along as fast as they could, Dorothy only stopping once to pick a beautiful flower; and after a time the Tin Woodman cried out: “Look!”
“We must certainly get to the Emerald City if we can,” the Scarecrow continued, and he pushed so hard on his long pole that it stuck fast in the mud at the bottom of the river.
I think I can swim to the shore and pull the raft after me, if you will only hold fast to the tip of my tail.”
Other matches
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