Giving notice to someone is a way of informing them of something important. The term 'give notice to' can be broken down into three crossword solutions: WARN (4 letters), ALERT (5 letters), and SENDWORD (8 letters). WARN is a verb meaning to inform someone of potential danger or risk. ALERT is a verb meaning to inform someone of something important. SENDWORD is a verb meaning to communicate a message to someone.