Reading:

• On'yomi: ケン
• Kun'yomi: かぎ

Meaning:

• key

Components:

• Radicals:
• 金: (167) metal, gold
• 廴: (54) walking a long distance
• 聿: (129) brush

Miscellaneous information:

• Strokes: 17
• Taught in grade 9
• Frequency: 2029

Popular compounds containing this kanji:

• 鍵 かぎ
  key
• 鍵盤 けんばん
  keyboard (e.g. piano, computer)