Can someone explain to me what analysis 'depth' actually means

says this about depth: "This number describes how many moves ahead the engine is looking in order to make its decision on what the best move is." This is exactly what I always thought depth was. But looking at analysis seems to indicate otherwise. Take these examples of analysis of the same

What does it mean when someone is described as 'deep'? - Quora

What Is an Analytical Essay? A Writing Guide With Examples

Scientific method - Wikipedia

Trend Analysis - What Is It, Examples, Types, Uses, Benefits

What exactly is an in depth analysis? - Quora

Researchers from the University of Manchester Introduce MentalLLaMA: The First Open-Source LLM Series for Readable Mental Health Analysis with Capacity of Instruction Following - MarkTechPost

My in-depth analysis of the new poster : r/TheOwlHouse

Channeling: Charting a Path to Success

How To Perform A Gap Analysis: 5-Step Process (+ Free Template)