Source : Webster's Revised Unabridged Dictionary (1913)

Note \Note\, v. t. [AS. hn[=i]tan to strike against, imp.
   hn[=a]t.]
   To butt; to push with the horns. [Prov. Eng.]

Note \Note\, v. t. [imp. & p. p. {Noted}; p. pr. & vb. n.
   {Noting}.] [F. noter, L. notare, fr. nota. See {Note}, n.]
   1. To notice with care; to observe; to remark; to heed; to
      attend to. --Pope.

            No more of that; I have noted it well. --Shak.

   2. To record in writing; to make a memorandum of.

            Every unguarded word . . . was noted down.
                                                  --Maccaulay.

   3. To charge, as with crime (with of or for before the thing
      charged); to brand. [Obs.]

            They were both noted of incontinency. --Dryden.

   4. To denote; to designate. --Johnson.

   5. To annotate. [R.] --W. H. Dixon.

   6. To set down in musical characters.

   {To note a bill} or {draft}, to record on the back of it a
      refusal of acceptance, as the ground of a protest, which
      is done officially by a notary.

Note \Note\ [AS. n[=a]t; ne not + w[=a]t wot. See {Not}, and
   {Wot}.]
   Know not; knows not. [Obs.]

Note \Note\, n.
   Nut. [Obs.] --Chaucer.

Note \Note\, n. [AS. notu use, profit.]
   Need; needful business. [Obs.] --Chaucer.

Note \Note\, n. [F. note, L. nota; akin to noscere, notum, to
   know. See {Know}.]
   1. A mark or token by which a thing may be known; a visible
      sign; a character; a distinctive mark or feature; a
      characteristic quality.

            Whosoever appertain to the visible body of the
            church, they have also the notes of external
            profession.                           --Hooker.

            She [the Anglican church] has the note of
            possession, the note of freedom from party
            titles,the note of life -- a tough life and a
            vigorous.                             --J. H.
                                                  Newman.

            What a note of youth, of imagination, of impulsive
            eagerness, there was through it all ! --Mrs. Humphry
                                                  Ward.

   2. A mark, or sign, made to call attention, to point out
      something to notice, or the like; a sign, or token,
      proving or giving evidence.

   3. A brief remark; a marginal comment or explanation; hence,
      an annotation on a text or author; a comment; a critical,
      explanatory, or illustrative observation.

            The best writers have been perplexed with notes, and
            obscured with illustrations.          --Felton.

   4. A brief writing intended to assist the memory; a
      memorandum; a minute.

   5. pl. Hence, a writing intended to be used in speaking;
      memoranda to assist a speaker, being either a synopsis, or
      the full text of what is to be said; as, to preach from
      notes; also, a reporter's memoranda; the original report
      of a speech or of proceedings.

   6. A short informal letter; a billet.

   7. A diplomatic missive or written communication.

   8. A written or printed paper acknowledging a debt, and
      promising payment; as, a promissory note; a note of hand;
      a negotiable note.

   9. A list of items or of charges; an account. [Obs.]

            Here is now the smith's note for shoeing. --Shak.

   10. (Mus.)
       (a) A character, variously formed, to indicate the length
           of a tone, and variously placed upon the staff to
           indicate its pitch. Hence:
       (b) A musical sound; a tone; an utterance; a tune.
       (c) A key of the piano or organ.

                 The wakeful bird . . . tunes her nocturnal
                 note.                            --Milton.

                 That note of revolt against the eighteenth
                 century, which we detect in Goethe, was struck
                 by Winckelmann.                  --W. Pater.

   11. Observation; notice; heed.

             Give orders to my servants that they take No note
             at all of our being absent hence.    --Shak.

   12. Notification; information; intelligence. [Obs.]

             The king . . . shall have note of this. --Shak.

   13. State of being under observation. [Obs.]

             Small matters . . . continually in use and in note.
                                                  --Bacon.

   14. Reputation; distinction; as, a poet of note.

             There was scarce a family of note which had not
             poured out its blood on the field or the scaffold.
                                                  --Prescott.

   15. Stigma; brand; reproach. [Obs.] --Shak.

   {Note of hand}, a promissory note.

Source : WordNet®

note
     n 1: a short personal letter; "drop me a line when you get there"
          [syn: {short letter}, {line}, {billet}]
     2: a brief written record; "he made a note of the appointment"
     3: a characteristic emotional quality; "it ended on a sour
        note"; "there was a note of gaiety in her manner"; "he
        detected a note of sarcasm"
     4: a piece of paper money (especially one issued by a central
        bank); "he peeled off five one-thousand-zloty notes" [syn:
         {bill}, {government note}, {bank bill}, {banker's bill},
        {bank note}, {banknote}, {Federal Reserve note}, {greenback}]
     5: a notation representing the pitch and duration of a musical
        sound; "the singer held the note too long" [syn: {musical
        note}, {tone}]
     6: a comment or instruction (usually added); "his notes were
        appended at the end of the article"; "he added a short
        notation to the address on the envelope" [syn: {annotation},
         {notation}]
     7: high status importance owing to marked superiority; "a
        scholar of great eminence" [syn: {eminence}, {distinction},
         {preeminence}]
     8: a tone of voice that shows what the speaker is feeling;
        "there was a note of uncertainty in his voice"
     9: a promise to pay a specified amount on demand or at a
        certain time; "I had to co-sign his note at the bank"
        [syn: {promissory note}, {note of hand}]

note
     v 1: make mention of; "She observed that his presentation took up
          too much time"; "They noted that it was a fine day to go
          sailing" [syn: {observe}, {mention}, {remark}]
     2: notice or perceive; "She noted that someone was following
        her"; "mark my words" [syn: {notice}, {mark}] [ant: {ignore}]
     3: observe with care or pay close attention to; "Take note of
        this chemical reaction" [syn: {take note}, {observe}]
     4: make a written note of; "she noted everything the teacher
        said that morning" [syn: {take down}]