What is the part of speech out in sentence Mr and Mrs Lewis went out?

In the sentence "Mr. and Mrs. Lewis went out," the word "out" is an adverb.

Here's why:

* Adverbs modify verbs, adjectives, or other adverbs. In this case, "out" modifies the verb "went," telling us where they went.

* It answers the question "where?" Mr. and Mrs. Lewis went *out*.

Let me know if you have any other questions about parts of speech!