The crossword solution for the term START TO FORM is UNI, which is a three-letter word. UNI is an abbreviation for the word 'UNIFY', which means TO bring together or combine into one. Unifying can be used TO describe the process of forming a group or organization, such as a political party or a business. It can also refer TO the process of creating a single entity from multiple parts, such as merging two companies.