Dos and Thing

Dos noun - An operating system that is on a disk.

Thing and dos are semantically related. in business topic. In some cases you can use "Thing" instead a noun "Dos", when it comes to topics like profession, adventure, achievement, occupation.

Thing noun - A member of the human race.

Dos and thing are semantically related. Sometimes you can replace term "Dos" with "Thing", this nouns are similar.