Tunnel \Tun"nel\, v. t. [imp. & p. p. {Tunneled}
(t[u^]n"n[e^]ld) or {Tunnelled}; p. pr. & vb. n. {Tunneling}
or {Tunnelling}.]
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1. To form into a tunnel, or funnel, or to form like a
tunnel; as, to tunnel fibrous plants into nests. --Derham.
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2. To catch in a tunnel net.
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3. To make an opening, or a passageway, through or under; as,
to tunnel a mountain; to tunnel a river.
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