In the word guard the letter which is silent is the letter U.
Yes, the noun 'watch' is a common noun; a general word for any timepiece carried or worn by a person; a general word for any period of keeping awake to guard, protect, or attend.
shield
Six letter word for palace guard is: Sentry
Hoard?
Guard is one.
The word "guard" can mean different things depending on context. An example sentence of the word "guard", when used to describe a person protecting an object, person of place would be "The guard watched the empty doorway, his back to the display case."
guard
Bard (a word that means poet).
security
skull protects the brain
crossword? the answer is guard, you made a mistake somewhere