Town-clerk, trefysgrifenydd
Town-hall, llysdy tref
Town-ship, trefgordd
Towns-man, trefwr, cyttrefwr
Track-less, di-ôl, disathr, dilwybr
Trac-tion, hydyniad, estyniad
Tra-duce, gwaradwyddo, goganu
Traf-fic, marchnadaeth: masnachu
Trai-tor, bradwr, bradychwr
Tram-ple, mysangu, sathru