Yes, ‘in’ is a preposition. It is used to indicate location, position, or inclusion within a space or time. For example:
- Location: ‘The book is in the drawer.’
- Position: ‘She is sitting in the chair.’
- Time: ‘We will meet in the morning.’
As a preposition, ‘in’ helps to show the relationship between a noun (or pronoun) and another word in the sentence. It is one of the most commonly used prepositions in the English language.