When trying to convey that something can be used or applied to a certain situation, the phrase "are applicable" is commonly used. However, there are several synonymous phrases that could be used in place of "are applicable". These include "can be used", "are relevant", "are appropriate", "are suitable", "are fitting", and "are valid". Using synonyms can help to add variation and clarity to your writing, as well as make it more interesting for readers. It's important to choose your words wisely and make sure that the word you use accurately conveys your intended meaning.