The term 'LOW NUMERO' is a combination of two Spanish words, 'LOW' and 'numero, ' which mean 'FEW' and 'NUMBER, ' respectively. The crossword solutions for this term are TRE (3 letters), TRES (4 letters), and UNO (3 letters). TRE and UNO are both Spanish words meaning 'THREE' and 'ONE, ' respectively, while TRES is the French word for 'THREE.' Therefore, the crossword solutions for 'LOW NUMERO' all refer to the NUMBER THREE, indicating that the term means 'FEW numbers.'