The crossword question here refers to a word with either “word” or “jar“. The answer is “SWEAR“, which can be associated with both “word” and “jar“. When someone swears or takes an oath, they are expected to keep their word, as it is a solemn promise or statement. On the other hand, if someone swears when they are frustrated or angry, it is a form of verbal expression that can be viewed as vulgar or inappropriate. In terms of “jar“, one can refer to swearing as a way of jarring or startling others with their language. Thus, the word “SWEAR” fits well with both “word” and “jar” in the context of the crossword question.