1. brief written records or comments
2. musical sounds or tones
3. short informal letters or messages

1. observes or pays attention to something
2. writes down brief records or comments

Examples

• She took detailed notes during the lecture.
• The piano played beautiful notes in the melody.
• He left notes for his roommate on the refrigerator.
• The musician practiced hitting the high notes.
• The teacher notes that students need more practice.
• I always note important dates in my calendar.
• Her notes from the meeting were very helpful.
• The detective notes every detail at the crime scene.