can

verb:to be able to; have the ability, skill, or opportunity to do something
- She can speak three languages fluently.
noun:a cylindrical metal container used for preserving food or storing liquids
- He opened a can of soup for a quick lunch.
verb:used to indicate permission
- I can't tell you what he said. It's a secret.
verb:used to indicate possibility
- The sign says getting close to animals can be dangerous.
verb:to dismiss someone from a job or position, often informally
- The manager caned several employees after the restructuring.