"YOM MEANS PERIOD in this context" is my conclusion. Yet you say:
"Even the English language often uses the same word with different meanings dependent upon the context."
Does morality ever enter into a creationist argument?
Yes. It is fundamental to life as human beings. There is nothing wrong with pointing out the fact that the same word can have a different meaning depending upon the context in which it is used. Nor is there anything wrong with assertion that your conclusion in this case is erroneous.