fast

A1 adj

Các nghĩa

vững chắc, kiên cố

Firm against attack; fortified by nature or art; impregnable; strong.

out-lawes […] lurking in woods and fast places
trung thành, thân thiết

Steadfast, with unwavering feeling. (Now mostly in set phrases like fast friend(s).)

I still hear you sayin', "Dear one, hold me fast"
mau · nhanh · lẹ

Moving with great speed, or capable of doing so; swift, rapid; light.

I am going to buy a fast car.
nhanh (nơtron)

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.
nhộn nhịp, sầm uất

Of a place, characterised by business, hustle and bustle, etc.

Sydney is a fast city, and the pace is becoming increasingly more frantic.
nhanh (lối chơi)

Causing unusual rapidity of play or action.

a fast racket, or tennis court
nhanh (truyền dữ liệu)

Able to transfer data in a short period of time.
say (ngủ)

Deep or sound (of sleep); fast asleep (of people).