Definitions of bruise:

• noun:   an injury that doesn't break the skin but results in some discoloration
• verb:   damage (plant tissue) by abrasion of pressure

  Example: "The customer bruised the strawberries by squeezing them"

• verb:   break up into small pieces for food preparation

  Example: "Bruise the berries with a wooden spoon and strain them"

• verb:   injure the underlying soft tissue of bone of

  Example: "I bruised my knee"

• verb:   hurt the feelings of

  Example: "This remark really bruised me ego"