- treat [trēt]vi.[ME treten < OFr traiter, to handle, meddle, treat < L tractare, freq. of trahere, to DRAW]1. to discuss terms (with a person or for a settlement); negotiate2. to deal with a subject in writing or speech; speak or write (of)3. to stand the cost of another's or others' entertainmentvt.1. to deal with (a subject) in writing, speech, music, painting, etc., esp. in a specified manner or style2. to act or behave toward (a person, animal, etc.) in a specified manner3. to have a specified attitude toward and deal with accordingly [to treat a mistake as a joke]4.a) to pay for the food, drink, entertainment, etc. of (another or others)b) to provide with something that pleases5. to subject to some process or to some substance in processing, as in a chemical procedure6. to give medical or surgical care to (someone) or for (some disorder)n.1. a meal, drink, entertainment, etc. paid for by someone else2. anything that gives great pleasure3.a) the act of treating or entertainingb) one's turn to treattreatabilityn.treatableadj.treatern.
English World dictionary. V. Neufeldt. 2014.