It is a command issued when the petitioner request. In it the court asks its subordinate court, government, public body etc where they are obliged to do it under certain statutes.
Under this doctrine, a negligent plaintiff can nonetheless recover if he can show that the defendant had the last opportunity to avoid the accident.
Claim in the simplest sense means that one requests or demands that he owns or has earned a particular thing. The one who claims is called a Claimant.
The general meaning of the word caution is the care taken to avoid any danger or mistakes. The word caution is used in a very regular manner and is an everyday word. If one wants to warn someone else, they always say that stay cautious.