Determine if a cell contains a dictionary word

Given a spreadsheet with cells containing text, is it possible to determining which cells contain dictionary words? I see questions/answer that talk about whether a cell contains text or not, but I am looking for something more specific. For example, it would look at cell B3, which contains aeea and determine that that is not a dictionary word, wheres is would look at cell E6, which contains deed and see that is is a dictionary word.