a small flap or strip of material attached to something, for holding, manipulation, identification, etc., a bill or account, especially one kept on file with a bartender, a key on a computer keyboard used to move the cursor to a set position or to select a function by pressing it, a section of a webpage or document that is opened in a separate browser window or marked by a tabbed heading for easy navigation

open a can of worms, under the table, hit the nail on the head

pick up the tab, keep tabs on, on the tab

Formal and Informal Expressions of tab

In different contexts, you can replace 'tab' with suitable alternatives. In a more formal setting, 'label, marker' is apt. In informal speech or writing, 'tag, thing' is a commonplace synonym.

tab: Explore its Definition & Usage

tab Definition

1a small flap or strip of material attached to something, for holding, manipulation, identification, etc.
2a bill or account, especially one kept on file with a bartender
3a key on a computer keyboard used to move the cursor to a set position or to select a function by pressing it
4a section of a webpage or document that is opened in a separate browser window or marked by a tabbed heading for easy navigation

Using tab: Examples

Take a moment to familiarize yourself with how "tab" can be used in various situations through the following examples!

Example
I use tabs to mark the pages in my notebook.
Example
He kept a running tab at the bar.
Example
Press the tab key to move to the next field.
Example
I have multiple tabs open in my browser.

tab Synonyms and Antonyms

Synonyms for tab

Antonyms for tab

whole
entirety

Idioms Using tab

open a can of worms
to create a situation that will cause trouble or be unpleasant
Example
I don't want to open a can of worms, so let's just leave that topic alone.
under the table
secretly or illegally
Example
He was paid under the table for his work, which is against the law.
hit the nail on the head
to do or say something exactly right
Example
You hit the nail on the head with your analysis of the situation.

Phrases with tab

pick up the tab
to pay for something, especially a meal or drinks
Example
Don't worry about the bill, I'll pick up the tab.
keep tabs on
to monitor or keep track of someone or something
Example
I like to keep tabs on my investments to make sure they are performing well.
on the tab
on credit, with the understanding that payment will be made later
Example
I'll have another drink and put it on the tab.

Origins of tab

shortened form of 'tableau', from French 'tableau', meaning 'picture'

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Summary: tab in Brief

The term 'tab' [tæb] refers to a small flap or strip of material used for holding, manipulation, identification, etc. It also denotes a bill or account kept on file with a bartender, a key on a computer keyboard, and a section of a webpage or document that is opened in a separate browser window or marked by a tabbed heading. Phrases like 'pick up the tab' and 'keep tabs on' extend its usage into idiomatic expressions.