tab

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1 tab /ˈtæb/ noun
plural tabs
1 tab
/ˈtæb/
noun
plural tabs
Learner's definition of TAB
[count]
: a small, flat piece on a box, envelope, etc., that can be put into a hole in order to hold two parts together
: a small, flat piece that sticks out from the edge of something (such as a folder) and allows you to identify and find it easily
US : a small piece of metal, plastic, etc., that is pulled in order to open or close something
US, informal : a record of the things (such as drinks at a bar) that a customer has ordered and will pay for later
: tab key
informal : a small pill of an illegal drug

keep tabs on

informal
: to carefully watch (someone or something) in order to learn what that person or thing is doing
2 tab /ˈtæb/ verb
tabs; tabbed; tabbing
2 tab
/ˈtæb/
verb
tabs; tabbed; tabbing
Learner's definition of TAB
[+ object] : to put a small, identifying label (called a tab) on something often used as (be) tabbed
[+ object] US, informal : to say that (someone or something) will do something or have a particular role or purpose often used as (be) tabbed
[no object] : to hit the tab key on a computer or typewriter
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Comments & Questions
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