n A knot; a fastening.
n A knot of hair, as at the back of a wig.
n A necktie (item of clothing consisting of a strip of cloth tied around the neck). See also bow tie, black tie.
n A lace-up shoe.
n A twist tie, a piece of wire embedded in paper, strip of plastic with ratchets, or similar object which is wound around something and tightened.
n A connection between people or groups of people, especially a strong connection.
n (construction) A structural member firmly holding two pieces together.
n (rail transport, US) A horizontal wooden or concrete structural member that supports and ties together rails.
n The situation in which two or more participants in a competition are placed equally.
n (cricket) The situation at the end of all innings of a match where both sides have the same total of runs (different from a draw).
n (sports, US) An equalizer, a run, goal, point, etc which causes participants in a competition to be placed equally or have the same score(s).
n (sports, Britain) A meeting between two players or teams in a competition.
n (music) A curved line connecting two notes of the same pitch denoting that they should be played as a single note with the combined length of both notes.
n (phonetic transcription) A curved line connecting two letters (⁀), used in the IPA to denote a coarticulation, as for example /d͡ʒ/.
n (statistics) One or more equal values or sets of equal values in the data set.
n (surveying) A bearing and distance between a lot corner or point and a benchmark or iron off site.
n (graph theory) A connection between two vertices.
n A tiewig.
v (transitive) To twist (a string, rope, or the like) around itself securely.
v (transitive) To form (a knot or the like) in a string or the like.
v (transitive) To attach or fasten (one thing to another) by string or the like.
v (transitive, sometimes figurative) To secure (something) by string or the like.
v (transitive, intransitive) To have the same score or position as another in a competition or ordering.
v (US, transitive) To have the same score or position as (another) in a competition or ordering.
v (music) To unite (musical notes) with a line or slur in the notation.
v (US, dated, colloquial) To believe; to credit.
v (programming, transitive) In the Perl programming language, to extend (a variable) so that standard operations performed upon it invoke custom functionality instead.