Vector
Vectors get used a lot in artificial-intelligence.
Vectors are used to represent images. Vectors are to represent artificial neurons. Inputs to most models / algorithms are often turned into some type of vectors. Etc. Vectors are all over the place in artificial-intelligence.
But, what is a vector‽
Oddly, the answer seems to depend on who you ask. If you ask a physicist, a mathematician, and a software developer that same question, you will probably get 3 different answers.