post-office car
US (now historical )
noun
A mail van or carriage on a train.
Origin
Mid 19th century.
- unsung
- unsung hero
- unsung heroine
- unsupervised
- unsupportable
- unsupportably
- unsupported
- unsupportive
- unsuppressed
- unsure
- unsurely
- unsureness
- unsurfaced
- unsurmountable
- unsurpassable
- unsurpassably
- unsurpassed
- unsurprised
- unsurprising
- unsurprisingly
- unsurveyed
- unsusceptibility
- unsusceptible
- unsuspected
- unsuspectedly