Thunderbird (English, noun)
expansion: Thunderbird (plural Thunderbirds)
Senses:
glosses: Alternative letter-case form of thunderbird.
tags: alt-of
topics: rail-transport
railways
transport
glosses: A locomotive stored at a strategic point on the network so as to be available to quickly rescue a failed train.
tags: UK
Forms:
form: Thunderbirds
tags: plural