The term Spanish for 'ONE' can be found in a variety of crossword solutions. The LANGUAGE solution is 'espanol, ' which is the Spanish word for the LANGUAGE. The three-letter solution is 'UNO, ' which is the Spanish word for 'ONE.' The five-letter solution is 'ONION, ' which is a vegetable that is popular in Spanish cuisine. The six-letter solution is 'omelet, ' which is a type of egg dish that is popular in Spanish cuisine. All of these solutions are related to the Spanish LANGUAGE and culture.