argument

When two or more people are discussing an idea that they do not agree on, they are having an argument. Often arguments are loud or angry.

Example: I thought we should buy the red car. She thought we should buy the blue car. We had an argument about it.

An argument can be the reasons behind an idea.

Example: An argument for buying a red car is that it would look cooler than a blue one.

An argument is an element that is assigned a semantic role in a proposition.

An argument is the independent variable of a function.