* Adjective: Describing something as complete, absolute, or very steep.
* Example: "The sheer cliff face was breathtaking."
* Adverb: Meaning completely or absolutely.
* Example: "She was sheer exhaustion."
* Noun: A thin, transparent fabric.
* Example: "The dress was made of sheer silk."
To determine the part of speech, look at how it's used in the sentence and what it modifies.