Fortified is one word that connotes being closely guarded. A place that has been strengthened and protected from an attack is said to be fortified. This term is frequently used to characterize prisons, military institutions, and other locations where security is of utmost importance. An illustration might be, “The border crossing was heavily fortified to prevent illegal entry.”
Secured is a synonym for heavily guarded. This phrase suggests that the location or subject is secure from potential dangers. It is frequently used to refer to houses, buildings, or other constructions that have security measures in place. An illustration would be, “The museum was heavily secured to protect the valuable artifacts.”
A gatekeeper is a person who maintains or watches over a gate. This phrase is frequently used metaphorically to refer to someone who manages access to something. As an illustration, “The CEO is the gatekeeper to the company’s financial information.”
The word protect is a synonym for shield. Although a shield is a particular kind of protective equipment, the word “protect” can also refer more broadly to any action performed to stop danger or damage. For instance, “The firefighters worked to stop the flames from spreading to the nearby homes.”
Instead of gaurd, the proper spelling is guard. To guard something implies to keep an eye on it or to safeguard it. It can also be used to describe a person or team in charge of guarding a location or a specific individual. As in “The security guard checked everyone’s bags before allowing them into the concert venue.”
To sum up, there are a number of other terms you can use to describe a location or someone that is closely guarded. Two alternatives are fortified and secured, and a gatekeeper is a person who stands watch at a gate. Shield and protect are synonymous, and guard is spelt with a “u” rather than a “a.” Guard is derived from the Latin verb guardare, which meaning to watch over or defend.