[{"Bold_text": null, "List Items": ["the letters represented by the radio telegraphic signal (· · · – – – · · ·) used, especially by ships in distress, as an internationally recognized call for help."]}, {"Bold_text": "noun", "List Items": ["any call for help:We sent out an SOS for more typists."]}, {"Bold_text": "verb (used without object)", "List Items": ["to send an SOS."]}, {"Bold_text": "abbreviation for", "List Items": ["shit on a shingle shit on a shingle(a euphemistic initialism used to avoid explicit vulgarity)."]}, {"Bold_text": "abbreviation for", "List Items": ["(in prescriptions) if necessary."]}]