Comparison words are used to compare two or more things. The four crossword solutions for the term comparison words are 'than' (4 letters), 'LESS' (4 letters), 'ASA' (3 letters), and 'isto' (4 letters). 'Than' is used to compare two things, such AS 'I am taller than you'. 'LESS' is used to compare two things, such AS 'I have LESS money than you'. 'ASA' is a comparative form of the word 'AS', which is used to compare two things, such AS 'I am AS tall AS you'. Finally, 'isto' is a comparative form of the word 'is', which is used to compare two things, such AS 'This isto that'.