Unlike the pause button (⏸️), the stop button (⏹️) signifies a complete halt that is difficult to resume. Use this emoji when you want to firmly put a stop to an action or statement.

This square symbol is known to have first been used on cassette tape players in the 1960s. Today, it's also used in conversations to cut someone off or to express a strong refusal to listen anymore. As it has a very direct meaning, caution may be needed when using it.