What is "tin-opener"

Usage examples of "tin-opener".

I took the tins out from their hiding place and pulled the tin-opener out of my pocket.

Followed statements from half a dozen distinguished surgeons, each signed autographically, all but one rather bluntly disagreeing with me, insisting that the tin-opener cuts cleanly and, if not man's best friend, should at least be considered one of the triumphs of civilization.

When the Americans left, their tents and rubbish bins were plundered, and for a decade their miraculous tin-openers no bigger than a razorblade were currency in the place of coins and penknives within the swaps and negotiations of the islands' little boys.