Argument
From ACT Wiki
1. Maths.
A variable input to a maths function which drives the result of the maths function.
For example the function Profit = Revenues LESS Costs has two arguments, namely Revenues and Costs.
2. Computing.
A variable input to a computer function which drives the result of the computer function.
For example the Excel function =ROUND(number, num_digits) also has two arguments, namely the number which is being rounded off and the number of decimal places to which the number is to be rounded.