louden

Found in Anh - Anh (Wordnet)

Definition Verb (transitive) : To cause a sound or noise to become louder; to increase the volume of something. Verb (intransitive) : To become louder; to increase in volume. Usage As a transitive verb, "louden" takes a direct object (the thing being made louder). As an intransitive verb, "louden" describes a subject that increases its own volume. It is a regular verb: louden, loudened, loudene...