verb “can”
 can; past tense and conditional could
- to have the knowledge or skill to do something 
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 He can play the guitar beautifully.
 - to be allowed or have the opportunity to do something 
You can have a cookie after dinner if you eat all your vegetables.
 - to be able to perceive something with the senses 
Can you see the bird on the windowsill?
 
noun “can”
 singular can, plural cans
- a container usually made of metal and shaped like a cylinder 
She opened a can of soup and poured it into the pot to heat for dinner.
 - a special container for watering plants 
Every morning, Jenny fills her green watering can to water the flowers in her garden.
 
verb “can”
 infinitive can; he cans; past tense canned; past part. canned; ger. canning
- to preserve food by sealing it in a metal container 
After harvesting the peaches, we canned them to preserve their sweetness for the winter months.
 - to stop or get rid of something 
After reviewing the budget, the manager decided to can the expensive marketing campaign.