What is another word for become rancid?
Pronunciation: [bɪkˌʌm ɹˈansɪd] (IPA) 
The term "become rancid" refers to food that has gone bad and is no longer fit for consumption. There are a number of synonyms that can be used to describe this process, including spoil, decay, rot, putrefy, go off, turn bad, sour, curdle, and deteriorate. These words all convey a sense of something going sour or breaking down over time, and can be used to describe various types of foods and other perishable materials. Whether you're talking about spoiled milk, rotten fruit, or other types of foods that have gone bad, these synonyms offer a range of ways to describe the process of decay and deterioration.
