The phrase "fall feet" can have a few different connotations. One meaning might be that someone falls or stumbles with their feet. Synonyms for this usage might include trip, stumble, or lose footing. Another meaning could be that something descends or drops to the ground, such as leaves falling from a tree. In this context, alternative phrases might include drop, plummet, or cascade down. Additionally, "fall feet" could refer to the season of autumn, which is characterized by falling leaves. Synonyms for this usage might include autumn, harvest time, or the fall season.