The crossword solutions for the term 'THAT'S INTERESTING' are GEE and ISEE. GEE is an interjection used to express surprise, excitement, or enthusiasm. It is often used as an exclamation of delight. ISEE stands for the Independent School Entrance Exam, which is a standardized test used by many private schools in the United States to assess applicants for admission. The test is designed to measure academic achievement and aptitude in reading, mathematics, and writing.