Here are some examples of how to use "peculiar" in a sentence:
* "He had a peculiar habit of talking to himself in the mirror." (This sentence uses "peculiar" to describe something unusual or strange.)
* "The old house had a peculiar smell, like dust and mothballs." (Here, "peculiar" describes a unique and somewhat unpleasant sensory experience.)
* "The situation was peculiar, with no clear explanation for what had happened." (This sentence uses "peculiar" to describe something unusual or confusing.)
Remember, "peculiar" often implies something is out of the ordinary or unexpected.