It’s correct to use “others” as the plural and “other’s” to talk about the singular possessive. You can use “others’” as a plural possessive, but it’s much more likely that you’ll require a secondary noun for this to make sense (i.e. “other people’s”).

Other’s and others’ are both correct forms of the word “other.” Use others when referring to a group of people or things, such as “The others are waiting for you outside.” Use others’ for plural possessive form, such as “The others’ opinions are very important to me.” Other’s acts as the singular possessive form.

Other’s is the singular possessive form of other. E.g., “We must consider each other’s feelings.” Furthermore, the term others’ is the plural possessive. For example, “I passed, but the others’ results were terrible.” Finally, others is the standard plural form.

The possessive singular form of the word other is other’s. The plural form of the word other is others. The possessive plural is others’.