Literal Use:
* She clenched her fist in anger. (This shows physical action)
* The dog clenched its jaw on the bone. (This focuses on the action of holding something tightly)
* He clenched his teeth to keep from screaming. (This shows a physical reaction to pain or emotion)
Figurative Use:
* The suspense of the movie had me clenching my arms. (This uses the word figuratively to show tension)
* The politician clenched onto his platform, refusing to compromise. (This shows someone holding on to something strongly)
* She clenched her emotions, refusing to let her sadness show. (This uses the word figuratively to show someone holding back emotions)
You can use the word "clench" to show physical actions, emotional reactions, or even to describe someone holding onto something important.