Crossword Genius

Train, say (7)

Ross

I believe the answer is:

express

I believe this is a double definition.

'train' is the first definition.
(I've seen this before)

'say' is the second definition.
(thesaurus)

(Other definitions for express that I've seen before include "Fast train; specific" , "Say; fast train" , "Verbalise - very fast" , "At high speed like some post" , "Explicit" .)

I've seen this clue in The Telegraph.
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