From Longman Dictionary of Contemporary Englishtin openerˈtin ˌopener noun [countable] 
DFU British English a tool for opening tins of food SYN can opener
DFU British English a tool for opening tins of food SYN can openerExamples from the Corpus
tin opener• The little gear lever feels like a tin opener on a string of cables.• He may need special implements, such as a wall-mounted tin opener which he can operate with one hand. 