- to leave or cause to leave a railway train, as passengers, etc
WordReference Random House Unabridged Dictionary of American English © 2026
de•train
(dē trān′),USA pronunciation v.i.
de•train′ment, n.
- Rail Transportto alight from a railway train;
arrive by train. - Meteorologyto transfer air from an organized air current to the surrounding atmosphere (opposed to entrain).
- de- + train 1880–85
Collins Concise English Dictionary © HarperCollins Publishers::
detrain /diːˈtreɪn/ vb