Which word is a synonym of 'Contaminate'?

Explanation

'Contaminate' means to make something impure or lower its quality. Among the options, 'Degrade' best matches this meaning as it implies reducing the value or quality of something. The other choices, such as 'Sanitize', 'Disinfect', and 'Sterilize', mean to clean or purify, while 'Organize' refers to arranging items systematically.