boundary (n.)
- ankle
- articulation
- balustrade
- barrier
- borderline
- bound
- bounds
- bourn
- butt
- caesura
- ceiling
- cervix
- circumscription
- clinch
- closure
- colon
- comma
- compass
- confinement
- confines
- connection
- continence
- coupling
- cutoff
- deadline
- delimitation
- determinant
- determinative
- diameter
- discipline
- divider
- dovetail
- elbow
- embrace
- end
- equator
- extreme
- extremity
- fence
- final
- finish
- floor
- frontier
- hedge
- hinge
- hip
- interface
- join
- joining
- joint
- juncture
- knee
- knuckle
- last
- limen
- limit
- limitation
- limiting
- limits
- line
- link
- littoral
- march
- mark
- mete
- miter
- moderation
- mortise
- neck
- nib
- partition
- pause
- perimeter
- period
- pivot
- point
- pole
- prescription
- proscription
- qualification
- rabbet
- rail
- railing
- restriction
- rimming
- scarf
- seam
- semicolon
- shoulder
- start
- stitch
- stop
- stub
- stump
- suture
- symphysis
- tag
- tail
- term
- terminal
- terminative
- terminus
- threshold
- tip
- toggle
- ultimate
- union
- wall
- weld
- wrist