No. The word side is a noun. The word right is an adjective.
"Left" is not a preposition; it is typically used as an adjective or noun to refer to the direction or side opposite to right.
Preposition
"Right" can function as a preposition when indicating direction or location. For example, in the phrase "She stood right next to me," "right" is acting as a preposition indicating the position of the person.
Only the postgraduates are eligible for which post is the right preposition.
The brothers fought over a trivial issue is the right preposition.
Derived prepositions are for example granted and depending.
I'm pretty sure right is a preposition.
No, it is not a preposition. It is a compound adverb meaning immediately.
No, it is not a preposition. The word edge can be a noun or a verb.
I'm pretty sure right is a preposition.
i think the preposition comes after turn is "off"
No. Perpendicular is an adjective. It cannot be a preposition.