At a time before expected; sooner than usual.
Soon; in good time; seasonably.
Near the start or beginning.
Near the start of the day.
Having begun to occur; in its early stages.
At a time in advance of the usual or expected event.
Arriving a time before expected; sooner than on time.
Of a star or class of stars, hotter than the sun.
A shift (scheduled work period) that takes place early in the day.
Ahead of the correct time or schedule.
Deeply or soundly .
In a firm or secure manner, securely; in such a way as not to be moved; safe, sound .
Immediately following in place or time; close, very near .
Quickly, with great speed; within a short time .
The act or practice of fasting, religious abstinence from food
One of the fasting periods in the liturgical year
A train that calls at only some stations it passes between its origin and destination, typically just the principal stations
Short for "stand fast", a warning not to pass between the arrow and the target
Of a place, characterised by business, hustle and bustle, etc.
Not running or fading when subjected to detrimental conditions such as wetness or intense light; permanent.
Causing unusual rapidity of play or action.
Steadfast, with unwavering feeling. (Now mostly in set phrases like fast friend(s).)
Able to transfer data in a short period of time.
Firm against attack; fortified by nature or art; impregnable; strong.
Moving with great speed, or capable of doing so; swift, rapid.
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).
Deep or sound (of sleep); fast asleep (of people).
More sensitive to light than average.
Ahead of the correct time or schedule.
(academic) To cause a person or animal to abstain, especially from eating.
To reduce or limit one's nutrition intake for medical or health reasons, to diet.
To practice religious abstinence, especially from food.