Final answer:
The word 'after' in the sentence 'May comes after April' is a preposition that shows the relationship between two words in a sentence.
Step-by-step explanation:
The word 'after' in the given context is a preposition. Prepositions are words that show the relationship of a noun or pronoun to another word in a sentence.
In the sentence 'May comes after April', the word 'after' shows the relationship between 'May' and 'April'. It indicates that May comes later in time than April.
Other examples of prepositions include: in, on, at, to, by, with, from, and between.
Learn more about Parts of speech