English definition of “join”
BECOME MEMBER [T] › to become a member of a group or organization: He joined the army when he was eighteen.
DO WITH OTHERS [T] › to do something or go somewhere with someone: Would you like to join us for dinner?
FASTEN [T] › to fasten or connect things together: Join the ends together with strong glue. A suspension bridge joins the two islands.
MEET [I, T] › to meet at a particular point: The Mississippi River and the Missouri join near St Louis.
join a line (also UK join a queue) › to go and stand at the end of a row of people waiting for something → See also join forces