TR or tr may stand for:
Tramadol, sold under the brand name Ultram among others, is an opioid-like pain medication used to treat moderate to moderately severe pain.
Trinidad and Tobago ( ( listen), ), officially the Republic of Trinidad and Tobago, is a twin island sovereign state that is the southernmost nation of the West Indies in the Caribbean.
Transport Layer Security (TLS) – and its predecessor, Secure Sockets Layer (SSL), which is now deprecated by the Internet Engineering Task Force (IETF) – are cryptographic protocols that provide communications security over a computer network.
A trademark, trade mark, or trade-mark is a recognizable sign, design, or expression which identifies products or services of a particular source from those of others, although trademarks used to identify services are usually called service marks.
Paul Michael Levesque (born July 27, 1969), better known by the ring name Triple H (an abbreviation of his original WWE ring name Hunter Hearst Helmsley), is an American business executive, professional wrestler, and actor.
Translation is the communication of the meaning of a source-language text by means of an equivalent target-language text.
In mathematics, the trigonometric functions (also called circular functions, angle functions or goniometric functions) are functions of an angle.
A tropical cyclone is a rapidly rotating storm system characterized by a low-pressure center, a closed low-level atmospheric circulation, strong winds, and a spiral arrangement of thunderstorms that produce heavy rain.