A note is a very short piece of writing. You might write a note to your sister on the back of your grocery list, or jot down a quick note reminding yourself to call your grandmother later.

You might slip a love note under a door, or leave your cat sitter a note explaining how much to feed Fluffy. Other notes are taken during lectures or written in notebooks by journalists during interviews. You can also make a mental note, paying particular attention to something in the hopes that you'll remember it later. The Old French noter, "indicate or write down," comes from the Latin root notare, "to mark or note," from nota, "mark."

Definitions of note
  1. noun
    a brief written record
    “he made a note of the appointment”
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    jot, jotting
    a brief (and hurriedly handwritten) note
    notes written in the margin
    memo, memoranda, memorandum
    a written proposal or reminder
    a short note
    scholia, scholium
    a marginal note written by a scholiast (a commentator on ancient or classical literature)
    aide-memoire, position paper
    a memorandum summarizing the items of an agreement (used especially in diplomatic communications)
    type of:
    written account, written record
    a written document preserving knowledge of facts or events
  2. noun
    a comment or instruction (usually added)
    “his notes were appended at the end of the article”
    synonyms: annotation, notation
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    poste restante
    a notation written on mail that is to be held at the post office until called for (not in the United States or Canada)
    acknowledgment, citation, cite, credit, mention, quotation, reference
    a short note recognizing a source of information or of a quoted passage
    footer, footnote
    a printed note placed below the text on a printed page
    N.B., NB, nota bene
    a Latin phrase (or its abbreviation) used to indicate that special attention should be paid to something
    PS, postscript
    a note appended to a letter after the signature
    photo credit
    a note acknowledging the source of a published photograph
    cross-index, cross-reference
    a reference at one place in a work to information at another place in the same work
    type of:
    comment, commentary
    a written explanation or criticism or illustration that is added to a book or other textual material
  3. noun
    a short personal letter
    synonyms: billet, line, short letter
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    a note explaining an absence
    type of:
    personal letter
    a letter dealing with personal affairs
  4. noun
    high status importance owing to marked superiority
    synonyms: distinction, eminence, preeminence
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    preeminence in a particular category or group or field
    type of:
    high status
    a position of superior status
  5. verb
    observe with care or pay close attention to
    “Take note of this chemical reaction”
    synonyms: observe, take note
  6. verb
    notice or perceive
    “She noted that someone was following her”
    synonyms: mark, notice
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    fail to notice
    take notice
    observe with special attention
  7. verb
    make mention of
    “They noted that it was a fine day to go sailing”
    synonyms: mention, observe, remark
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    comment, notice, point out, remark
    make or write a comment on
    criticise, criticize, knock, pick apart
    find fault with; express criticism of; point out real or perceived flaws
    make a comment, usually ironic
    kibbitz, kibitz
    make unwanted and intrusive comments
    type of:
    say, state, tell
    express in words
  8. verb
    make a written note of
    “she noted everything the teacher said that morning”
    synonyms: take down
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    type of:
    get down, put down, set down, write down
    put down in writing; of texts, musical compositions, etc.
  9. noun
    a notation representing the pitch and duration of a musical sound
    “the singer held the note too long”
    synonyms: musical note, tone
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    keynote, tonic
    (music) the first note of a diatonic scale
    (music) the second note of a diatonic scale
    (music) the third note of a diatonic scale; midway between the tonic and the dominant
    (music) the fourth note of the diatonic scale
    (music) the fifth note of the diatonic scale
    (music) the sixth note of a major or minor scale (or the third below the tonic)
    leading tone, subtonic
    (music) the seventh note of the diatonic scale
    pedal, pedal point
    a sustained bass note
    shake, trill
    a note that alternates rapidly with another note a semitone above it
    middle C
    the note designated by the first ledger line below the treble staff; 261.63 hertz
    a combination of three or more notes that blend harmoniously when sounded together
    passing note, passing tone
    a nonharmonic note inserted for transition between harmonic notes
    semibreve, whole note
    a musical note having the longest time value (equal to four beats in common time)
    half note, minim
    a musical note having the time value of half a whole note
    crotchet, quarter note
    a musical note having the time value of a quarter of a whole note
    eighth note, quaver
    a musical note having the time value of an eighth of a whole note
    semiquaver, sixteenth note
    a musical note having the time value of a sixteenth of a whole note
    demisemiquaver, thirty-second note
    a musical note having the time value of a thirty-second of a whole note
    hemidemisemiquaver, sixty-fourth note
    a musical note having the time value of a sixty-fourth of a whole note
    acciaccatura, appoggiatura, grace note
    an embellishing note usually written in smaller size
    blue note
    a flattened third or seventh
    a single tone repeated with different words or different rhythms (especially in rendering liturgical texts)
    (music) the keynote of the scale of C major
    a chord whose notes are played in rapid succession rather than simultaneously
    an accented chord
    common chord, triad
    a three-note major or minor chord; a note and its third and fifth tones
    seventh chord
    a triad with a seventh added
    type of:
    musical notation
    (music) notation used by musicians
  10. noun
    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”
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    type of:
    air, atmosphere, aura, patina
    a distinctive but intangible quality surrounding a person or thing
  11. noun
    a tone of voice that shows what the speaker is feeling
    “there was a note of uncertainty in his voice”
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    type of:
    tone, tone of voice
    the quality of a person's voice
  12. noun
    a promise to pay a specified amount on demand or at a certain time
    “I had to co-sign his note at the bank”
    synonyms: note of hand, promissory note
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    demand note
    a note payable on demand
    note receivable
    your right in a promissory note in which the maker promises to pay a certain amount of money at a certain time
    note payable
    a note promising to pay a certain amount of money at a certain time
    municipal note
    a municipal debt instrument with a maturity of less than 2 years
    an informal debt instrument; representing `I owe you'
    time note
    a note that specifies the time (or times) of repayment
    type of:
    certificate of indebtedness, debt instrument, obligation
    a written promise to repay a debt
  13. noun
    a piece of paper money (especially one issued by a central bank)
    “he peeled off five one-thousand-zloty notes
    synonyms: Federal Reserve note, bank bill, bank note, banker's bill, banknote, bill, government note, greenback
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    silver certificate
    formerly a bank note issued by the United States Treasury and redeemable in silver
    c-note, hundred dollar bill
    a United States bill worth 100 dollars
    fifty, fifty dollar bill
    a United States bill worth 50 dollars
    twenty, twenty dollar bill
    a United States bill worth 20 dollars
    ten dollar bill, tenner
    a United States bill worth 10 dollars
    five dollar bill, five-spot, fiver
    a United States bill worth 5 dollars
    two dollar bill
    a United States bill worth 2 dollars
    buck, clam, dollar, dollar bill, one dollar bill
    a piece of paper money worth one dollar
    nickel, nickel note
    five dollars worth of a drug
    type of:
    folding money, paper currency, paper money
    currency issued by a government or central bank and consisting of printed paper that can circulate as a substitute for specie
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