1. A fastener that serves to join or connect
   - 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. Connect, fasten, or put together two or more pieces
   - connect, link, tie 
3. Make a logical or causal connection
   - associate, tie in, relate, link, colligate, connect

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

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

Encyclopedia: Linkup

• outvote
• outwait
• outward
• outward-bound
• outward-developing
• outward-moving
• outwardly
• outwardness
• outwards
• outwear
• outweigh
• outweird
• outwit
• outwith
• outwork
• ouzel
• ouzo
• OV
• oval
• oval kumquat
• Oval Office
• oval window
• oval-bodied
• oval-fruited
• oval-shaped