note

noun

• 1a brief record of facts, topics, or thoughts, written down as an aid to memory:I’ll make a note in my diary Robyn arranged her notes on the lectern
• a short comment on or explanation of a word or passage in a book or article; an annotation:see note iv above

• 2a short informal letter or written message:I left her a note explaining where I was going
• an official letter sent from the representative of one government to another.
• [usually with modifier] a short official document that certifies a particular thing:you need a sick note from your doctor

• 3British a banknote:a ten-pound note

• 4a single tone of definite pitch made by a musical instrument or the human voice:the last notes of the symphony died away
• a written sign representing the pitch and duration of musical note.
• a key of a piano or similar instrument:black notes white notes
• a bird’s song or call, or a single tone in this:the tawny owl has a harsh flight note

• 5 [in singular] a particular quality or tone that reflects or expresses a mood or attitude:there was a note of scorn in her voice the decade could have ended on an optimistic note
• any of the basic components of fragrance or flavor:the fresh note of bergamot

verb

• 1notice or pay particular attention to (something):noting his mother’s unusual gaiety [with clause]:please note that you will not receive a reminder that final payment is due
• remark upon (something), typically in order to draw someone’s attention to it:we noted earlier the difficulties inherent in this strategy

• 2record (something) in writing:he noted down her address on a piece of paper