logomach
/ˈlɔɡəˌmæk/
noun
- A person who argues about words or engages in a dispute over the meaning of words.
- In the online forum, a logomach kept insisting that everyone use the exact dictionary meaning of 'theory'.
- My uncle is such a logomach that he once spent an hour arguing whether 'literally' can mean 'figuratively'.
- The professor was a notorious logomach who could turn any discussion into a debate about definitions.