There are many different synonyms for the phrase "call for help" that can be used depending on the context and urgency of the situation. Some possible options include "summon assistance," "request aid," "ask for support," "signal for help," "raise the alarm," "cry out for help," "plead for assistance," "sound the alarm," "alert authorities," "seek rescue," and "call out for aid." Each of these phrases conveys a slightly different nuance and emotion, so it's important to choose the best one for the specific situation at hand. Regardless of which synonym is used, the most important thing is to reach out for help when it's needed.