MSN verb 1noun 1forms 3 verb1 •(informal) To talk (to someone) via Windows Live Messenger (formerly MSN Messenger), an instant messaging client from Microsoft; to send (someone) a message via this client.Very grateful to my mom too, who called right after I MSNed her about the visit. — 2005 noun1 •Initialism of Master of Science in Nursing.Other nurses choose to go on for MSN and PhDs in nursing. — 2005 formsMSNed · MSNing · MSNs
