trail, n. [train]; [track], [wake], [spoor], footmark, [foil], [trace].
trailing, a. procumbent, prostrate. Antonyms: [upright], [erect].
train, n. [retinue], [suite], attendants; series, [chain].
train, v. [discipline], [nurture], [drill]; [accustom], [habituate], [familiarize].
trained, a. skilled, practiced, disciplined, [competent]. Antonym: untrained.
training, n. [discipline], [nurture], drilling, [exercise].
traitorous, a. [perfidious], treasonable, [recreant], [faithless].
tramp, v. march, trudge, [plod].
tramp, n. [vagrant], [vagabond], landloper, walleteer, [nomad], [hobo], [derelict].
trample, v. [crush]; [scorn], [spurn], [disregard].