Word feminizer is a term used to describe the process of changing a word from its masculine form to its feminine form. The crossword solution for this term is 'ette, ' which is a French suffix used to feminize words. This suffix is often added to the end of a word to indicate that it is in the feminine form. For example, the masculine form of the word 'prince' is 'PRINCESS' when the suffix 'ette' is added.