Hyphens, En Dashes, Em Dashes
Q. Dear Chicago experts, can you please help resolve this hyphenation issue? Should it be “worm composting expert” or “worm-composting expert”? Should it be “worm composting master” or “worm-composting master”? Thank you very much.
A. Use a hyphen; it makes it clear that the expert or master is not a worm.