intransitive verb
Definition: To discuss or handle a subject or topic in writing or speech.
Example: The article treats of the effects of climate change on wildlife.
noun
Definition: A special gift or enjoyment that brings happiness, often something nice given to someone.
Example: The ice cream was a wonderful treat on a hot day.
transitive verb
Definition: To give someone something enjoyable or to provide medical care to someone.
Example: She decided to treat her friend to dinner for her birthday.