The term 'Cross My Heart!' is a phrase used to emphasize the truthfulness of a statement. It is often used as a promise or a vow, and is usually accompanied by a gesture of crossing one's heart with their finger. The crossword solutions for this term are TRULY (5 letters), Nolie (5 letters), Iswear (6 letters), and Ipromise (8 letters). All of these words are synonyms for the phrase 'Cross My Heart!', and can be used to emphasize the truthfulness of a statement.