To strike lightly, especially with a slight sound. She tapped the table with her fingers while waiting for the meeting to start.
To draw liquid from a container or source. He tapped the keg to serve beer at the party.
To exploit or make use of a resource or opportunity. The company plans to tap into the growing market for electric vehicles.
To connect a device to a telephone line in order to listen secretly to conversations. The detective tapped the suspect's phone to gather evidence.
To designate or select someone for a particular role or task. She was tapped to lead the new project due to her expertise.
To cut internal threads in (a hole) with a tap. Tap the drilled hole before inserting the machine screw.