from The American Heritage® Dictionary of the English Language, 4th Edition

  • transitive v. To bring to an end; close: concluded the rally with the national anthem. See Synonyms at complete.
  • transitive v. To bring about (a final agreement or settlement): conclude a peace treaty.
  • transitive v. To reach a decision or form an opinion about. See Synonyms at decide.
  • transitive v. To arrive at (a logical conclusion or end) by the process of reasoning; infer on the basis of convincing evidence: The jury concluded that the defendant was innocent.
  • transitive v. Obsolete To confine; enclose.
  • intransitive v. To come to an end; close.
  • intransitive v. To come to a decision or agreement.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • v. To end, to come to an end.
  • v. To come to a conclusion, to a final decision.

from the GNU version of the Collaborative International Dictionary of English

  • intransitive v. To come to a termination; to make an end; to close; to end; to terminate.
  • intransitive v. To form a final judgment; to reach a decision.
  • transitive v. To shut up; to inclose.
  • transitive v. To include; to comprehend; to shut up together; to embrace.
  • transitive v. To reach as an end of reasoning; to infer, as from premises; to close, as an argument, by inferring; -- sometimes followed by a dependent clause.
  • transitive v. To make a final determination or judgment concerning; to judge; to decide.
  • transitive v. To bring to an end; to close; to finish.
  • transitive v. To bring about as a result; to effect; to make.
  • transitive v. To shut off; to restrain; to limit; to estop; to bar; -- generally in the passive.

from The Century Dictionary and Cyclopedia

  • To shut up; close in; inclose.
  • To bring to an end; finish; terminate.
  • To settle, arrange, or determine finally.
  • This motion was well liked of all, but it was not thought fit to conclude it.
  • To make a final judgment or determination concerning; judge; decide; determine; pronounce.
  • To infer or determine by reasoning; deduce; judge to be or to exist: used more particularly of strict and demonstrative inference, but also of induction and hypothesis.
  • To stop or restrain, or, as in law, estop from argument or proceedings to the contrary; oblige or bind, as by authority, or by one's own argument or concession: generally in the passive: as, the defendant is concluded by his own plea.
  • To shut up; refute; stop the mouth of.
  • To include.
  • To close in; come to an end.
  • To come to a decision; resolve; determine; decide.
  • To arrive at an opinion; form a final judgment.
  • To perform the act of reasoning; deduce a consequence or consequences from given premises; infer.
  • n. A conclusion; an ending.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • v. reach a conclusion after a discussion or deliberation
  • v. come to a close
  • v. decide by reasoning; draw or come to a conclusion
  • v. reach agreement on
  • v. bring to a close


Middle English concluden, from Latin conclūdere : com-, intensive pref.; see com- + claudere, to close.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin conclūdere, present active infinitive of conclūdō. (Wiktionary)


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