A device for opening something, especially a container
A person who opens something up.
A ring attached to the seal of a can which breaks the seal when pulled, a ring pull.
A tin opener
An event or situation that proves to be unexpectedly enlightening
A period of exercise taken as a warm-up
A tool for opening tins of food
A person who or thing that opens.
A tool used for opening envelopes, typically one shaped like a knife