(transitive, agriculture) To prepare (land) with a tractor. / (transitive, science fiction) To move with a tractor beam. / (transitive, medicine, archaic) To treat by means of tractoration, or Perkinism.

The elongated back portion of a dress or skirt (or an ornamental piece of material added to similar effect), which drags along the ground. / A trail or line of something, especially gunpowder.

(intransitive) To practice an ability. / (transitive) To teach and form (someone) by practice; to educate (someone). / (intransitive) To improve one's fitness. / (intransitive) To proceed in sequence.

(uncountable, obsolete) Treachery; deceit. / (countable, obsolete) A trick or stratagem. / (countable, obsolete) A trap for animals, a snare; (figuratively) a trap in general.

(obsolete) train oil, whale oil.

(chemistry) A compound, element, or isotope used to track the progress or history of a natural process.

(science fiction) A device-generated beam used to attract other objects from a distance.

A trademark that has been officially registered with the government by its owner. Indicated by the symbol ®.

(historical) Any profession that was disreputable because it caused a great deal of pollution. The archetypal example is the tannery.

A word, symbol, or phrase used to identify a particular company's product and differentiate it from other companies' products. / Any proprietary business, product or service name.