The phrase "are open" can be substituted with a variety of synonyms depending on the context it is being used in. Some alternatives for "are open" include "available," "unlocked," "accessible," "free," "unobstructed," "exposed," "pervious," "public," "unfastened," "unbolted," "unbarred," "out in the open," and "unrestricted." These synonyms can be used in a variety of settings, from describing physical spaces like open parks and unlocked doors to discussing more abstract concepts like open minds and unlocked potential. The context in which "are open" is being used will determine which synonym is the most appropriate to use.