# Key Terms — Defining Functions (def), Parameters, & Arguments

- Link: https://doss.academy/course-3-introduction-to-programming/unit-5-modular-programming-user-defined-methods/lesson-1-defining-functions-def-parameters-arguments/key-terms/
- Published: 2026-10-18T12:31:14-04:00
- Author: matthew.leffler@jefferson.kyschools.us

Course 3: Introduction to Programming / Unit 5: Modular Programming & User-Defined
Methods / Lesson 1: Defining Functions (def), Parameters, & Arguments

## Vocabulary focus

Function, def Keyword, Parameter, Argument, Function Header, Function Call, Signature,
Modular Code, Subroutine, Abstraction

## Build your glossary

For each term or concept, write an explanation in your own words and add an example
from this lesson. Check your explanation against the lesson resources.

  |  Term or concept |  My explanation |  Example |  
   |  ________________ |  ________________ |  ________________ |  
 |  ________________ |  ________________ |  ________________ |