The noun note has 9 senses (first 9 from tagged texts)
1. (327) note, short letter, line, billet -- (a short personal letter; "drop me a line when you get there")
2. (223) note -- (a brief written record; "he made a note of the appointment")
3. (110) note -- (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. (98) bill, note, government note, bank bill, banker's bill, bank note, banknote, Federal Reserve note, greenback -- (a piece of paper money (especially one issued by a central bank); "he peeled off five one-thousand-zloty notes")
5. (98) note, musical note, tone -- (a notation representing the pitch and duration of a musical sound; "the singer held the note too long")
6. (76) note, annotation, notation -- (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")
7. (16) eminence, distinction, preeminence, note -- (high status importance owing to marked superiority; "a scholar of great eminence")
8. (14) note -- (a tone of voice that shows what the speaker is feeling; "there was a note of uncertainty in his voice")
9. (12) note, promissory note, note of hand -- (a promise to pay a specified amount on demand or at a certain time; "I had to co-sign his note at the bank")
Overview of verb note
The verb note has 4 senses (first 4 from tagged texts)
1. (41) note, observe, mention, remark -- (make mention of; "She observed that his presentation took up too much time"; "They noted that it was a fine day to go sailing")
2. (37) notice, mark, note -- (notice or perceive; "She noted that someone was following her"; "mark my words")
3. (30) note, take note, observe -- (observe with care or pay close attention to; "Take note of this chemical reaction")
4. (3) note, take down -- (make a written note of; "she noted everything the teacher said that morning")