coupling (n.)
- agglomeration
- agglutination
- aggregation
- ankle
- articulation
- bond
- boundary
- butt
- cervix
- clinch
- closure
- clustering
- combination
- communication
- concatenation
- concourse
- concurrence
- confluence
- congeries
- conglomeration
- conjugation
- conjunction
- connection
- convergence
- copulation
- dovetail
- elbow
- embrace
- gathering
- hinge
- hip
- hookup
- intercommunication
- intercourse
- interface
- join
- joinder
- joining
- joint
- jointure
- junction
- juncture
- knee
- knuckle
- liaison
- link
- linkage
- linking
- marriage
- meeting
- merger
- merging
- miter
- mortise
- neck
- pairing
- pivot
- rabbet
- scarf
- seam
- shoulder
- splice
- stitch
- suture
- symbiosis
- symphysis
- tie
- tie-in
- tie-up
- toggle
- unification
- union
- weld
- wrist