knothole
Board's natural vacancy
A knothole is a hole in a piece of wood where a knot has fallen out or been removed.
Knotholes appear in lumber, fences, and tree trunks where branches once grew.
The classic image is a child peering through a knothole in a fence to watch a baseball game: He found a knothole and watched the whole ninth inning.
Cereal plant's harvest unit
Unfilled space between
- apertureAdjustable optical inlet
- creviceNarrow opening in surface
- cavityEmpty space within
- voidWithout legal effect
peephole · eyehole · crack · fissure · chink · slot · orifice · perforation
Furtive brief look
- peerOne of similar standing
- spyCovert information gatherer
- peepingLooking through cracks
- glimpseFleeting view
watch · observe · snoop · pry · voyeur · curiosity · furtive · surreptitious
Imperfection in something
- imperfectionFault or shortcoming
- blemishVisible flaw or mark
- defectInherent imperfection or fault
- irregularityDeparture from standard
weakness · fault · damage · mar · disfigurement · deformity · aberration · warpage
grain
Cereal plant's harvest unit
timber · lumber · plank · board · fence · pine · oak · cedar · maple · hardwood
gap
Unfilled space between
void · peephole · eyehole · crack · fissure · chink · slot · orifice · perforation · puncture
peek
Furtive brief look
glimpse · watch · observe · snoop · pry · voyeur · curiosity · furtive · surreptitious · covert
flaw
Imperfection in something
- imperfectionFault or shortcoming
- blemishVisible flaw or mark
- defectInherent imperfection or fault
irregularity · weakness · fault · damage · mar · disfigurement · deformity · aberration · warpage