Key-Value Pair
Domain: Programming Fundamentals
🎯 Motivation
Dictionaries store data as key-value pairs: you use the key to find the value, like a word and its definition.
📋 Concrete Example
{'apple': 3, 'banana': 5} - apple is the key, 3 is the value. You look up apple to get 3.
🔗 Analogy
A name tag at a conference - the name (key) identifies the person (value). You find someone by looking for their name tag.