The crossword solution for the term 'Word Before or After 'AS' is 'SUCH', which is a four-letter word. 'SUCH' is an adverb that is used to indicate a degree of something, usually in the negative sense. It can be used to describe a situation, feeling, or quality, and is often used to express surprise or disbelief. For example, one might say 'I can't believe SUCH a thing happened!' or 'It's SUCH a beautiful day!' It can also be used to introduce a clause, AS in 'SUCH was the case.'