The term EQUI- is related to the ISO standard, which stands for International Organization for Standardization. This organization sets standards for products, services, and systems to ensure quality, safety, and efficiency. The crossword solutions for EQUI- are EQUIP, EQUITY, and EQUAL. EQUIP means to provide with the necessary items for a particular purpose, EQUITY means fairness or justice, and EQUAL means having the same value, amount, or measure.