tunnelling
Digging through earth
Tunnelling is the British spelling of tunneling—the act of digging or boring a passage through or under something.
Workers engage in tunnelling to create subways, mines, or underground passages.
In physics, quantum tunnelling describes particles passing through barriers they classically shouldn't penetrate.
Animals tunnel through soil; prisoners tunnel to freedom.
Burrowing insectivore mammals
- gophersBurrowing North American rodents
- rabbitsBurrowing lagomorphs with long ears
- earthwormsSoil-dwelling segmented invertebrates
- badgersStriped burrowing mustelids
voles · groundhogs · prairie dogs · wombats · ants · termites · burrow · den
Failing to engage interest
- drillingHole-making by rotation
- TBMUnderground excavation equipment
- excavationAct of unearthing
- cut-and-coverSurface-dug tunnel method
shielding · lining · segmental · grouting · jacking · slurry · geotechnical · blasting
Enclosed connecting walkway
- burrowAnimal's dug dwelling
- tubeHollow cylindrical passage
- shaftNarrow vertical passage
- gallerySpace for displaying artwork
conduit · adit · drift · warren · duct · crawlway · underpass · mine
Underground transit passage
- metroUrban rail transit
- undergroundBelow ground or countercultural
- railwayTrack system for trains
- tubeHollow cylindrical passage
channel · passage · rail · commuter · transit · station · platform · track
Smallest discrete unit
- barrierObstruction preventing passage
- electronNegative subatomic particle
- wavefunctionQuantum state's mathematical representation
- probabilityQuantified chance of occurrence
particle · potential · nanoscale · semiconductor · transistor · microscopy · STM · diode
Flight from captivity
- prisonConfinement for offenders
- smugglingIllegal covert transport
- contrabandProhibited trade goods
- borderOuter edge or limit
clandestine · secret · underground · hidden · evasion · wartime · POW · infiltration
moles
Burrowing insectivore mammals
- gophersBurrowing North American rodents
- rabbitsBurrowing lagomorphs with long ears
- earthwormsSoil-dwelling segmented invertebrates
badgers · voles · groundhogs · prairie dogs · wombats · ants · termites · burrow · den · warren
boring
Failing to engage interest
- drillingHole-making by rotation
- TBMUnderground excavation equipment
- excavationAct of unearthing
cut-and-cover · shielding · lining · segmental · grouting · jacking · slurry · geotechnical · blasting · ventilation
corridor
Enclosed connecting walkway
gallery · conduit · adit · drift · warren · duct · crawlway · underpass · mine · catacomb
subway
Underground transit passage
- metroUrban rail transit
- undergroundBelow ground or countercultural
- railwayTrack system for trains
tube · channel · passage · rail · commuter · transit · station · platform · track · line
quantum
Smallest discrete unit
- barrierObstruction preventing passage
- electronNegative subatomic particle
- wavefunctionQuantum state's mathematical representation
probability · particle · potential · nanoscale · semiconductor · transistor · microscopy · STM · diode · junction
escape
Flight from captivity
- prisonConfinement for offenders
- smugglingIllegal covert transport
- contrabandProhibited trade goods
border · clandestine · secret · underground · hidden · evasion · wartime · POW · infiltration · concealed
tunnellingsurface mining
Topsoil-removal ore extraction
strip mining · open-pit mining · skyscraper construction · road building · paving
tunnellingbridging
Connecting separated things
bridge building · spanning · elevating · embanking · filling
tunnellinggoing around
Moving in orbit
circumventing · ascending · surmounting · scaling · vaulting
- quantum tunnellingWave-like particles crossing forbidden barriers
tunnel, tunnels, subterranean, tunneled, tunneling, tunnelled, tunneler, tunnelers