The term HIGH DO is a combination of two words, 'HIGH' and 'DO'. The first word, 'HIGH', is an adjective that means 'of great vertical extent'. The second word, 'DO', is a verb that means 'to carry out or perform an action'. The crossword solution for the term HIGH DO is AFRO, which is an abbreviation for African-American. AFRO stands for African-American culture, which includes music, art, literature, and other forms of expression. It is also used to refer to people of African descent living in the United States.