Jargon - Threat Vector - What is it?

Everyone sprinkles these words to make their argument sound good.

So, I thought I will find a simple article that could explain it 

According to the article:- 

• A Threat Vector is a path or a tool that a Threat Actor uses to attack the target.
• Threat targets are anything of value to the Threat Actor. It can be a PC, PDA, Ipad, Your online bank account… or you(stealing your identity)

The ISACA link below has a presentation in PDF format:-

https://www.isaca.org/chapters5/Virginia/Events/Documents/Past%20Pres%202011-03%20Threat%20Vectors.pdf