basic function
nounUK /ˈbeɪsɪk ˈfʌŋkʃən/
US /ˈbeɪsɪk ˈfʌŋkʃən/
A basic function is a simple job that something does.
The basic function of a spoon is to help you eat soup.
OTHER MEANINGS
2. In math, a basic function is a simple rule that changes one number into another.
Adding two is a basic function you can do in your head.
3. In computing, a basic function is a small built-in action a program can do.
The calculator's basic function is to add and subtract numbers.
4. A basic function can mean the least a thing needs to work properly.
A lamp's basic function is to give light.