notch

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

• noun A V-shaped cut.
• noun Such a cut used for keeping a record.
• noun A narrow pass between mountains.
• noun Informal A level or degree.
• transitive verb To cut a notch in.
• transitive verb To record by or as if by making notches.
• transitive verb Informal To achieve; score.

from The Century Dictionary.

• To cut a notch or notches in; indent; nick; hack; as, to notch a stick.
• To place in a notch; fit to a string by the notch, as an arrow.
• In cricket, to mark or score; have as score the number of.
• noun The posterior or lower angle, formed by the meeting of the pubic bones. Same as pubic arch.
• noun Same as undercut, 2.
• To make an undercut in (a tree) preparatory to felling (it). Also undercut.
• noun A nick or indentation; a small hollow or nick cut or sunk in anything, as in the end of an arrow for the reception of the bowstring.
• noun In carpentry, a hollow cut in the face of a piece of timber for the reception of another piece.
• noun A narrow defile or passage between mountains; or, more properly, the entrance to such a defile, when it is nearly closed by precipices or walls of rock on either hand.
• noun A step or degree; a grade.
• noun A point in the game of cricket.
• noun In zoology and anatomy, an incision or incisure; an emargination: as, the interclavicular notch, the depression over the breast-bone between the prominent ends of the clavicles.
• noun In armor, the bouche of a shield.
• noun The large notch of the maxilla that forms the lateral and lower boundary of the entrance to the nasal cavity.

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

• noun A hollow cut in anything; a nick; an indentation.
• noun A narrow passage between two elevations; a deep, close pass; a defile.
• transitive verb To cut or make notches in; to indent; also, to score by notches.
• transitive verb To fit the notch of (an arrow) to the string.

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

• noun A V-shaped cut.
• noun Such a cut, used for keeping a record
• noun An indentation.
• noun A mountain pass; a defile
• noun informal A level or degree.
• verb transitive To cut a notch in (something).
• verb transitive To record (a score or similar) by making notches on something.
• verb transitive To join by means of notches.
• verb : (transitive) To achieve (something).

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

• verb cut or make a notch into
• noun a V-shaped indentation
• verb notch a surface to record something
• noun the location in a range of mountains of a geological formation that is lower than the surrounding peaks
• noun a small cut
• noun a V-shaped or U-shaped indentation carved or scratched into a surface