Related by context. Frequent words. (Click for all words.) 49 tunnels 48 excavating 47 tunneling 46 underground tunnels 45 digging trenches 44 digging 43 smuggling tunnels 38 excavation 38 burrowing 37 excavate 37 underground bunkers 37 sewage pipes 37 trench 37 drainage pipes 36 mine shafts 36 burrow 35 sewer pipes 35 excavations 35 underground 35 ground penetrating radar 35 mine shaft 35 embankments 35 burrows 34 Israeli warplanes 34 planting roadside bombs 34 tunneled 34 firing rockets 34 excavated 34 diggers 34 homemade rockets 34 bulldozers 34 crawling 34 shovels 34 tunnel 33 excavators 33 roadbed 33 jackhammers 33 Excavations 33 concrete slabs 33 tombs 33 fortifications 33 booby traps 33 backhoes 33 dug 33 cavern 32 caves 32 infiltrating 32 tilling 32 earthen 32 sinkhole 32 pipes 32 demolishing 32 bulldozing 32 backfilling 32 backhoe 32 cave ins 32 crawl spaces 32 drainage pipe 32 bunkers 31 subterranean 31 passageways 31 ventilation shaft 31 rocket barrages 31 unearthing 31 Tunnels 31 basements 31 dig 31 riverbed 31 Excavation 31 irrigation canals 31 firing mortars 31 sheltering 31 barbed wire fences 31 dump trucks 31 subsidence 31 digging deeper 31 arms caches 31 foxholes 31 burying 31 cave 31 crevasses 30 Qassam rockets 30 crevices 30 shelling 30 boulders 30 constructing 30 fortifying 30 gas canisters 30 bulldozer 30 crawlspace 30 silt 30 explosives 30 culverts 30 caverns 30 caving 30 trenches 30 plotting 30 Grad rockets 30 jets bombed 30 underpasses 29 rearming