TTR may refer to: Games Ticket to Ride (board game), a 2004 rail-themed Eurogame Ticket to Ride (video game) , its 2008 digital adaptation Toontown Rewritten, a fan-made revival of the online role-playing game Toontown Online Linguistics Type-token ratio, a lexical density formula Translation Terminology Writing (Traduction, terminologie, rédaction), a French-language journal Transportation Talleyrand Terminal Railroad, Jacksonville, Florida, United States Tai Tong Road stop, an MTR light-rail stop in Hong Kong Pongtiku Airport, Rantetayo, Sulawesi, Indonesia (by IATA code) Toronto Terminals Railway, Canadian operator of the Union Station Rail Corridor Other uses Tonopah Test Range, a military installation in Nevada, United States Transthyretin, a plasma protein Relative track and record, an access method in a direct-access storage device See also Ticket to Ride (disambiguation)