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English definition of “rail”

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rail

noun uk   /reɪl/ us  

rail noun (TRAINS)

B1 [U] the system of transport that uses trains: Environmentalists argue that more goods should be transported by rail. [C] one of the two metal bars attached to the ground on which trains travel: A train left/went off the rails and crashed into the bank, killing several passengers.
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rail noun (BAR)

C2 [C] a horizontal bar fixed in position, especially to a wall or to vertical posts, used to close something off, as a support, or to hang things on: Will spectators please stay behind the rail? Hold onto the rail so that you don't fall. The (clothes) rail in her wardrobe was crammed full of dresses. He folded the towels and hung them on the towel rail ( US towel rack).
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rail

verb [I + prep] uk   /reɪl/ formal us  
to complain angrily: He railed against/at the injustices of the system.
Phrasal verbs
(Definition of rail from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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