Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun The highest point or part; the top.
  • noun The highest level or degree that can be attained.
  • noun The highest level, as of government officials.
  • noun A conference or meeting of high-level leaders, usually called to shape a program of action.
  • intransitive verb To climb to the summit of (a mountain).
  • intransitive verb To climb to the summit.

from The Century Dictionary.

  • noun The highest point; the top; the apex.
  • noun The highest point or degree; the utmost elevation; the maximum; the climax.
  • noun In mathematics: A point of a polyhedron where three or more surfaces (generally planes) meet.
  • noun A point at which a penultimate curve cuts two coincident parts of the same degenerate curve.
  • noun In bivalves, the highest part of the shell; the region in which the hinge is situated.

from the GNU version of the Collaborative International Dictionary of English.

  • noun The top; the highest point.
  • noun The highest degree; the utmost elevation; the acme.
  • noun (Zoöl.) The most elevated part of a bivalve shell, or the part in which the hinge is situated.
  • noun the highest level of a canal, a railroad, or the like, in surmounting an ascent.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun countable a peak; the top of a mountain
  • noun countable a gathering or assembly of leaders
  • verb transitive, hiking, climbing To reach the summit of a mountain.

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

  • noun the top or extreme point of something (usually a mountain or hill)
  • verb reach the summit (of a mountain)
  • noun the highest level or degree attainable; the highest stage of development
  • noun a meeting of heads of governments

Etymologies

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

[Middle English somet, from Old French sommette, diminutive of som, top, from Latin summum, from neuter of summus, highest; see uper in Indo-European roots.]

Examples

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