Meaning & Definition of word "Knuckle"

noun:

• 1. Any of the joints of the fingers, especially where the fingers meet the hand.
  • Example: She hit her knuckle against the table, causing a sharp pain.
• 2. A part of the finger that includes the bones and the surrounding tissue, especially in relation to striking or hitting.
  • Example: He learned to deliver a powerful punch by using his knuckles effectively.
• 3. The rounded protruding part of a joint in the finger.
  • Example: The boxer had calloused knuckles from years of training.
• 4. A similar joint in the leg of an animal, particularly in horses.
  • Example: The veterinarian examined the horse's knuckles for any signs of injury.

verb:

• 1. To hit something with the knuckles.
  • Example: He knuckled the door to get attention from the people inside.
• 2. To form a circular shape with the fingers as in a fist.
  • Example: She knuckled her fingers as she prepared to cheer for her team.