a relationship or expression involving one or more variables, a set sequence of steps that accomplish a specific task, the normal or characteristic action of anything

Formal and Informal Expressions of functions

In different contexts, you can replace 'functions' with suitable alternatives. In a more formal setting, 'operations, tasks' is apt. In informal speech or writing, 'jobs, things' is a commonplace synonym.

functions: Explore its Definition & Usage

functions Definition

1a relationship or expression involving one or more variables
2a set sequence of steps that accomplish a specific task
3the normal or characteristic action of anything

Using functions: Examples

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

Example
The function of the heart is to pump blood throughout the body.
Example
The function of the liver is to filter toxins from the blood.
Example
In mathematics, a function is a relation between a set of inputs and a set of possible outputs with the property that each input is related to exactly one output.
Example
The function of a computer program is to perform a specific task, such as sorting data or editing text.

functions Synonyms and Antonyms

Synonyms for functions

operations
tasks
roles

Phrases with functions

serve a function
to have a particular purpose or use
Example
The decorative pillows may look nice, but they don't serve any real function.
in good working function
working properly and efficiently
Example
The car's engine is in good working function, so it should run smoothly.
out of function
not working or not able to be used
Example
The elevator is out of function, so we'll have to take the stairs.

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Summary: functions in Brief

The term 'functions' [ˈfʌŋkʃənz] refers to relationships or expressions involving one or more variables, sequences of steps that accomplish a specific task, or the normal or characteristic action of anything. It spans contexts from biology to mathematics to computing, exemplified by 'The function of the heart is to pump blood throughout the body.' 'Functions' extends into phrases like 'serve a function,' and idioms like 'in good working function,' denoting proper operation, and 'out of function,' implying non-operation.