PONY EXPRESS(noun)Did you mean?RhymesDefinitions There is 1 meaning of the phrase Pony Express. Pony Express - as a noun Express mail carried by relays of riders on horseback; especially between missouri and california around 1860 Word Variations & RelationsAnagramsStarts PStarts POStarts PONStarts PONYEnds SEnds SSEnds ESSEnds RESSStarts P & ends SStarts PO & ends SStarts P & ends SSA-Z Proximitiespontosponts7pontusponty10pony9 Pony Express pony-trekkingponycartponying13ponyskin17ponyskins18