How to pronounce canned:
To seal in a can.
Example: "They canned air to sell as a novelty to tourists."
To preserve by heating and sealing in a jar or can.
Example: "They spent august canning fruit and vegetables."
To discard, scrap or terminate (an idea, project, etc.).
Example: "He canned the whole project because he thought it would fail."
To shut up.
Example: "Can your gob."
To fire or dismiss an employee.
Example: "The boss canned him for speaking out."
To hole the ball.
Preserved in cans.
Example: "Canned tomatoes"
(by extension) previously prepared; not fresh or new; standardized, mass produced, or lacking originality or customization.
Example: "The form letter included a canned answer stating that what i asked was against policy."
Drunk.
Terminated, fired from a job.