WordWeb Online

1. A fastener that serves to join or connect
   "the walls are held together with metal linkups placed in the wet mortar during construction";
   - link, tie, tie-in

1. Be or become joined or united or linked
   "The travellers linked up again at the airport";
   - connect, link, join, unite
    
2. Join together or make a link between two or more pieces
   "Can you link up the two loudspeakers?";
   - connect, link, tie
    
3. Make a logical or causal connection
   "I cannot link up these events at all";
   - associate, tie in, relate, link, colligate, connect

Derived forms: linked up, linking up, links up, linkups

Type of: cerebrate, cogitate, fastener, fastening, fixing, holdfast, think

Antonym: dissociate

Encyclopedia: Linkup