1. plural of key; metal instruments used to open locks
2. plural of key; buttons on a keyboard, piano, or similar device
3. plural of key; important or essential elements for understanding or solving something

Examples

• I lost my car keys somewhere in the house.
• She handed me the keys to the front door.
• The piano keys felt smooth under her fingers.
• Press the arrow keys to move the cursor.
• The answer keys are in the teacher’s desk.
• Understanding the main themes are the keys to analyzing this novel.
• The Florida Keys are a chain of tropical islands.