Focus on the pronunciation of join up with sb/sth
English definition of “join up with sb/sth”
join up with sb/sth — Phrasal Verb with join
› to get together with another company, person, or group in order to do something together or form one company, group, etc.: The design company is planning to join up with a shoe manufacturer and create a new range of footwear. AOL joined up with Time Warner in a high-profile merger.