The crossword solution for the term 'As a Replacement' is 'INSTEAD'. This word is used to indicate that something else is being used in place of something else. For example, if someone was going to use a different type of paint than originally planned, they might say 'I'm using this paint INSTEAD'. It can also be used to indicate that one action is being taken in place of another, such as 'I'm going to the store INSTEAD of the park'. In either case, the word 'INSTEAD' is used to indicate that something else is being used or done in place of the original plan.