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English definition of “tab”

tab

noun [C]     /tæb/
PAPER/METAL ETC a small piece of paper, metal, etc that is fixed to something and that you use to open it or find out information about it: Pull tab to open.Letters, notes and cardsPaper and stationery
AMOUNT OF MONEY an amount of money that you owe for something you have bought or for a service you have used: Officials said the tab for the new bridge would be $8 million.Bills and invoices
INTERNET a small symbol on a website that gives you information about the different pages you can open on that website: Move between pages by clicking on the tabs at the top of the screen.Internet terminology and abbreviations
COMPUTING (also tab stop) a fixed position on a line of text that you are writing on a computer, etc that can be reached by pressing the tab keyComputer concepts
pick up the tab to pay for something, especially a meal in a restaurantPaying and spending money
(Definition of tab noun from the Cambridge Learner's Dictionary © Cambridge University Press)

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