Is this tranasitive or intransitive regular verb the watchman blew whistle?

The verb "blew" in the sentence "The watchman blew his whistle" is a transitive verb.

Here's why:

* Transitive verbs require a direct object. The direct object is the thing that receives the action of the verb.

* In this sentence, "whistle" is the direct object. The watchman performed the action of blowing on the whistle.

Let me know if you'd like more examples or explanations!