To say 'apple' in Spanish, you can use the word 'manzana'. This is a common and widely accepted term for apples in many Spanish-speaking countries, including Mexico, Spain, and much of Central and South America. In some Latin American countries, like Argentina and Chile, the word 'manzana' might be more commonly used than other regional dialects use other terms. When learning Spanish, it's worth noting that both 'manzana' and a more generic term for fruit, such as 'fruta', can be useful to know for everyday conversation, especially when trying to describe what you're eating or using in a recipe.