an object, quality, or event whose presence or occurrence indicates the probable presence or occurrence of something else, a gesture or action used to convey information or instructions, a notice giving information, directions, a warning, etc.

a sign of things to come, to be a sign of the times, to sign on the dotted line

sign of the times, sign away, sign off

Formal and Informal Expressions of sign

In different contexts, you can replace 'sign' with suitable alternatives. In a more formal setting, 'indication, notice' is apt. In informal speech or writing, 'heads-up, tip-off' is a commonplace synonym.

sign: Explore its Definition & Usage

sign Definition

1an object, quality, or event whose presence or occurrence indicates the probable presence or occurrence of something else
2a gesture or action used to convey information or instructions
3a notice giving information, directions, a warning, etc.

Using sign: Examples

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

Example
The dark clouds were a sign of an approaching storm.
Example
She gave me a sign to be quiet.
Example
The sign on the door said 'Closed'.

sign Synonyms and Antonyms

Synonyms for sign

Antonyms for sign

Idioms Using sign

a sign of things to come
an indication of what will happen in the future
Example
The company's recent layoffs are a sign of things to come.
to be a sign of the times
to reflect the current state of society or the world at large
Example
The popularity of reality TV shows is a sign of the times.
to sign on the dotted line
to formally agree to something by signing a contract or other legal document
Example
Before we can start working together, you'll need to sign on the dotted line.

Phrases with sign

sign of the times
something that reflects the current state of society or the world at large
Example
The rise of social media is a sign of the times.
sign away
to give up or relinquish control or ownership of something by signing a legal document
Example
He signed away his rights to the property.
sign off
to formally conclude or end something, often by giving a final statement or signature
Example
Let's sign off on this project and move on to the next one.

Origins of sign

from Old English 'sīn', meaning 'a mark, token'

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Summary: sign in Brief

The term 'sign' [saɪn] refers to an object, quality, or event that indicates the probable presence or occurrence of something else. It can also refer to gestures or actions conveying information or notices giving directions or warnings. Examples include 'The dark clouds were a sign of an approaching storm,' and 'The sign on the door said 'Closed'.' Phrases like 'sign of the times' and idioms like 'to sign on the dotted line' reflect the current state of society or formal agreements, respectively.