Simple past tense and past participle of tunnel.(verb)
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Use "tunnelled" in a sentence
"Mackenzie "tunnelled" Neagle by trying to shepherd while the Bomber was standing the mark."
"There was a little brush as the Energon came in, and a few explosions of magazines occurred along the war-tunnelled hills as the coast defences went to smash."
"Shalit was captured in June 2006 by Palestinian militants who tunnelled into Israel from the Gaza Strip."