mainline
/ˈmeɪnˌlaɪn/ adjective C1- Normal, principal or standard.
- Not fundamentalist, charismatic or evangelical.
- Of or pertaining to the principal route or line of a railway.
- Of or pertaining to a surface-level heavy rail system as distinct from an underground, elevated or light rail one.
- Of or pertaining to national or long-distance rail network operators as opposed to urban and suburban operators.
- Pertaining to a direct route between two major ports.
- Of a sequence of opening moves: being part of a main line ("a standard sequence of opening moves considered to be best play").
Other matches
Learn mainline in real texts
With a free account, hover any word in the library for its meaning, hear it read aloud, save words for review timed to your memory, and see how much of each book you already know.