n. 1.  A portion, division, piece, or segment of a whole. 2.  Any of several equal portions or fractions that can constitute a whole or into which a whole can be divided: a mixture of two parts flour to one part sugar. 3.  A division of a book or artistic work such as a film: a novel in three parts. 4.  a.  An organ, member, or other division of an organism: A tail is not a part of a guinea pig. b.   parts The external genitals. 5.  A component that can be separated from or attached to a system; a detachable piece: spare parts for cars. 6.  often  parts A region, area, land, or territory: "Minding your own business is second nature in these parts" (Boston). 7.  a.  A role: He has the main part in the play. b.  One's responsibility, duty, or obligation; share: We each do our part to keep the house clean. c.   parts Abilities or talents: a person of many parts. 8.  Music   a.  The music or score for a particular instrument, as in an orchestra. b.  One of the melodic divisions or voices of a contrapuntal composition. 9.  The line where the hair on the head is parted. v.  part·ed, part·ing, parts  v.tr. 1.  a.  To cause to move apart; put apart: parted the curtains. b.  To divide into two or more parts; split: The ship's prow parted the waves. 2.  To break up the relationship or association of: A dispute over ownership parted the founders of the business. See Synonyms at  separate. 3.  To comb (hair, for example) away from a dividing line, as on the scalp. 4.  To go away from; depart from: He parted this life for a better one. 5.  Archaic   To divide into shares or portions. v.intr. 1.  a.  To be divided or separated: The curtain parted in the middle. b.  To move apart: Her lips parted, and she spoke. 2.  a.  To leave one another; take leave: They parted as friends. b.  To go away from another; depart: She parted from him at college graduation. c.  Archaic   To die. 3.  To separate or divide into ways going in different directions: The road parts about halfway into the forest. 4.  To disagree or stop associating because of a disagreement: The committee parted over the issue of pay raises for employees. adv.  Partially; in part: part yellow, part green. adj. Phrasal Verb:  Not full or complete; partial: a part owner of the business.  part with Idioms: 1.  To give up or let go of; relinquish: I would not part with that book. 2.  To go away from (another): You should not part with him in anger.  for (one's) part  So far as one is concerned.  for the most part  To the greater extent; generally or mostly.  in good part  Good-naturedly or with good grace; without taking offense: take a joke in good part.  in part  To some extent; partly.  on the part of  Regarding or with respect to (the one specified): Brilliant strategy on the part of Confederate forces ensured their victory at Chancellorsville.  part and parcel  A basic or essential part: Working overtime is part and parcel of my job.  part company/ways 1.  To leave one another's presence; go away or separate. 2.  To disagree or stop associating because of a disagreement.  take part  To join in; participate: She took part in the celebration.  take (someone's) part  To side with in a disagreement; support. [Middle English, from Old French, from Latin pars, part-; see  perə-2 in the Appendix of Indo-European roots.]  | 
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.







