Notify/ˈnəʊtɪfaɪ/ Definition 1 of 3Pro Tip 1/3Personal Updates Use 'notify' to tell friends or family about events in your life. I'll notify you about my travel plans. Pro Tip 2/3Time Sensitive 'Notify' is often used when the information is time-critical. Notify me immediately if the meeting time changes. Pro Tip 3/3Request Specifics 'Notify of' is used to ask for specific information about something. Please notify me of any changes to the document.