[1] Trunk Module
[2] Test/Transfer Mode
[3] Transmission
[4] Transport Medium
[5] Transmission & Multiplexing (technisches Komitee der ETSI)
[6] Tactical Missile
[7] Tape Mark
[8] Telemetry
[9] Tone Modulation
[10] Transaction Manager
[11] Transmission Matrix
[12] Transverse Magnetic (field)
[13] (geschrieben \uTM\d:) Trade Mark
[14] Time Management (->"NASA Acronym List")
[15] Technical Management (->"NASA Acronym List")
[16] Traffic Model (->"NASA Acronym List")
[17] ISO3166 2LA (= Ländercode bzw. TopLevelDomain) für Turkmenistan