1. excited, nervous, or tense
Usage: often used with ‘up’
2. having keys or operated by keys

1. past tense of key: to provide with a key or keys
2. past tense of key: to adjust or tune to a particular standard

Examples

• She was keyed up before the big presentation.
• The athletes were keyed for the championship game.
• The piano was keyed to concert pitch.
• He keyed the lock mechanism yesterday.
• The security system is keyed to recognize authorized personnel.
• The team’s strategy was keyed to their opponent’s weaknesses.