Fast
/fɑːst/
noun
A train that calls at only some stations it passes between its origin and destination, typically just the principal stations
Synonyms: express, express train
adjective
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.
(of people) Steadfast, with unwavering feeling. (Now mostly in set phrases like fast friend(s).)
Synonyms: quick, rapid, speedy, swift, easy, slutty, ahead, colour-fast
adverb
In a firm or secure manner, securely; in such a way as not to be moved; safe, sound .
“Hold this rope as fast as you can.”
(of sleeping) Deeply or soundly .
“He is fast asleep.”
Immediately following in place or time; close, very near .
“Fast by the sturdy batsman the ball unheeded sped. / That ain't my style, said Casey. Strike one, the umpire said.”
Synonyms: ahead, deeply, firmly, securely, tightly, quickly, rapidly, speedily
interjection
Short for "stand fast", a warning not to pass between the arrow and the target