Question

Definition of Preposition. ​

Answer 1

Prepositions are a class of words used to express spatial or temporal relations or mark various semantic roles.

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Answer 2

Answer:

a word governing, and usually preceding, a noun or pronoun and expressing a relation to another word or element in the clause, as in ‘the man on the platform’, ‘she arrived after dinner’, ‘what did you do it for ?’.