If you happen to misspell "thwm", worry not! Here are a few possible correct suggestions: "them", "this", "thaw" or "than". Always double check spellings and if in doubt, consult a spellchecker or dictionary.
CHEM I am currently enrolled in a CHEM 101 class this semester.
CHM I'm sorry but "CHM" is an acronym and not a word. It could stand for "Chemical," "Community Health Model," "College of Humanities and Mines," or other things depending
chum I'm off to the docks to meet up with my chum and we'll go fishing.