The meaning of MOUNT is a high hill : mountain —used especially before an identifying name. How to use mount in a sentence.

mounted adjective [before noun] (ATTACHED) Something that is mounted is fixed to a wall, in a frame, etc., so that it can be looked at or used:

Mounted definition: seated or riding on a horse or other animal.. See examples of MOUNTED used in a sentence.

Definition of mount verb in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Mounted police or soldiers ride horses when they are on duty. A dozen mounted police rode into the square.

To increase in amount, extent, or intensity: Costs are mounting up. Fear quickly mounted.

to get up on (a platform, a horse, etc.): [~ + object] He mounted the stage and strode to the podium. [no object] mounted smoothly and galloped off. to set (a person) on horseback:[~ + …

Definitions of mounted adjective assembled for use; especially by being attached to a support synonyms:

be mounted on The children's work has been mounted on coloured paper and put up on the walls of the classroom. The surveillance camera is mounted above the main door.

There are 11 meanings listed in OED's entry for the adjective mounted, four of which are labelled obsolete. See ‘Meaning & use’ for definitions, usage, and quotation evidence.