Neither! It's a verb. It means he, she it sees.
The English word for 'videt' (Latin) is 'sees'. We get the words 'video', 'videotape' from the Latin 'videt'.
"Videt."
Videt.
He sees.
The accusitive form of "dura" or "durus" which means "hard, solid or difficult."
It's called the same thing in Latin grammar; although it's referred to as the "nominative case" instead of the predicate nominative.
singular is tu (nominative) plural is vos (nominative or accusative)
The Nominative is the subject, The accusative is the object
No. Either genitive singular or nominative plural.
Pericula.
That depends on how it is being used. Multus (masculine), Multa (feminine), Multum (neuter) are the three genders in the nominative. You have to match the adj (multus) to the noun it is modifying. e.g. I have many slaves. 'multum servum habeo.' Multum is the accusitive (case) singular (number) masculine (gender), matching servus in gender number and case.
He/she/it sees. (pres act ind 3 sg of video, videre)