simple past tense and past participle of mount
"The guard mounted his horse just as the sun began to set behind the hills."
In plain English: To mount something means to get on top of it, like climbing onto a horse or putting a picture frame on a wall.
"The soldier quickly mounted his horse to chase the thieves."
Usage: Use "mounted" to describe something that was successfully placed on a surface or climbed onto a vehicle in the past. It correctly indicates that an action of getting up or fixing something in place has already been completed.
assembled for use; especially by being attached to a support
"The security team arrived and quickly mounted the new surveillance cameras on the building's exterior walls."
decorated with applied ornamentation; often used in combination
"the trim brass-mounted carbine of the ranger"
on horseback
"The knight charged forward, mounted and ready for battle."
In plain English: Mounted means something is attached to a base, like a picture hanging on a wall or a statue standing on a pedestal.
"He was wearing a mounted helmet during the parade."
Usage: Use "mounted" to describe someone riding an animal, such as a horse or elephant, rather than simply being attached to something. It specifically implies that a person is currently seated on the back of a living creature for travel or combat.
The word mounted is formed by adding the suffix -ed to the verb mount. It entered English as a past tense form indicating that someone or something was placed on top of an animal or object.