intransitive verb
Definition: To make a low, deep sound, often expressing effort or displeasure, similar to the noise made by pigs.
Example: He grunted when he lifted the heavy box.
noun
Definition: A deep, low sound made by a person or animal, often expressing effort or discomfort.
Example: The soldier let out a grunt as he lifted the heavy box.
transitive verb
Definition: To make a low, deep sound, often to show agreement or to express a feeling without using words.
Example: He grunted in response to the question, showing he understood without saying anything.