verb🔗ShareTo make a tunnel through or under something; to burrow."The dog tunneled under the fence to chase the squirrel. "geologyenvironmentarchitectureactionChat with AIVocabulary GamePractice Reading
verb🔗ShareTo dig a tunnel."The children tunneled through the snow to build a fort. "geologyarchitecturebuildingactionChat with AIVocabulary GamePractice Reading
verb🔗ShareTo transmit something through a tunnel (wrapper for insecure or unsupported protocol)."The IT department tunneled the old email system's data through a secure connection so employees could access it from home. "technologycomputinginternetcommunicationtechnicalChat with AIVocabulary GamePractice Reading
verb🔗ShareTo insert a catheter into a vein to allow long-term use."The nurse tunneled a catheter into the patient's arm so they could receive chemotherapy at home over several weeks. "medicinetechnicalChat with AIVocabulary GamePractice Reading
verb🔗ShareTo undergo the quantum-mechanical phenomenon where a particle penetrates through a barrier that it classically cannot surmount."Even though the electrical current didn't have enough energy to go over the barrier, some electrons tunneled through it, unexpectedly creating a small charge. "physicssciencetechnicaltheoryenergyChat with AIVocabulary GamePractice Reading
