English definition of “connection”
RELATIONSHIP [C, U] › a relationship between people or things: The connection between smoking and heart disease is well known. He denied having any connection with the terrorists.
JOINING THINGS [C, U] › something that joins things together: Many companies now offer free connection to the Internet.
TRAVEL [C] › a train, bus, or aircraft that leaves a short time after another arrives, so that people can continue their journey: The train was half an hour late and I missed my connection.
in connection with › used to say what something is about: A man has been arrested in connection with the murder.