When it comes to synonyms for the word "are for," there are a few options to choose from. One possible alternative is "exist for," which suggests a similar sense of purpose or intention. Another possibility is "serve for," which implies a more active role in fulfilling a particular need or function. Additionally, one could use "intended for" to convey a sense of design or planning behind a particular object or idea. Finally, "meant for" offers a similar flavor of intention or purpose, with a slightly more personal or subjective tone. Overall, these synonyms allow for various shades of meaning and emphasis, depending on the context and desired effect.