Answer:
Preposition
Step-by-step explanation:
Prepositions are part of speech used to express relationship between people, things, places, as well as the relationship in space and time. They serve as a logical bond between words in a sentence. They are usually found before nouns/pronouns or as a part of phrasal verb (come across, look after, put down, come in...) The most used prepositions in English are: at, in, on, up, down, across, out, for, by, next to, with, until, through, from, since, below...)