knotholes
Fence peek spots
Knotholes are holes in wood where knots have fallen out or been removed.
A knot forms where a branch once joined the trunk; when the wood is cut into lumber and dries, these dense spots can shrink and drop out, leaving circular gaps.
Children peer through knotholes in fences; The old barn walls were full of knotholes that let in streaks of light.
Boundary structure between properties
- boardFlat rigid panel
- plankFlat timber piece
- grainCereal plant's harvest unit
- timberWood for construction
lumber · pine · oak · cedar · weathered · aged · wood grain · bark
Door-mounted viewing lens
- gapUnfilled space between
- apertureAdjustable optical inlet
- crackNarrow break or attempt
- creviceNarrow opening in surface
opening · peek · spy · peer · view · glimpse · lookout · watch
fence
Boundary structure between properties
timber · lumber · pine · oak · cedar · weathered · aged · wood grain · bark · tree
peephole
Door-mounted viewing lens
crevice · opening · peek · spy · peer · view · glimpse · lookout · watch · observe
imperfection
Fault or shortcoming
weakness · structural · grade · quality · clear · select · woodworking · carpentry · filling · patching
cavity
Empty space within
- nestAnimal-built shelter for young
- shelterProtected place or structure
- habitatOrganism's natural environment
squirrel · bird · insect · owl · woodpecker · beetle · refuge · den · critter · entrance
- wood scrapssawdust, wood chips, shavings, splinters, wood shavings