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Related to tunnel: Tunnel diode

ear tunnel

1. A short, cylindrical piece of jewelry that is fitted to one's earlobe, stretching it in such a way as to create a visible opening through the flesh. I'm in support of all forms of body modification, but the thought of getting an ear tunnel still gives me the willies.
2. The visible opening through the flesh of the earlobe that results from such a piercing. I think she tried to stretch her ear tunnel too fast, and now it's pretty badly infected.
See also: ear, tunnel

see the light at the end of the tunnel

To be able to conceptualize or foresee an end to something difficult or unpleasant; to be relatively near to the end or conclusion of some problem or difficulty. I've been working on this book for over a year, but I can finally see the light at the end of the tunnel. Now that the doctors have been able to diagnose what's wrong with me, we might finally be able to see the light at the end of the tunnel. After rejecting for years the possibility of using marijuana for medicinal purposes, the government seems to finally be seeing the light.
See also: end, light, of, see, tunnel

tunnel through something

to make a tunnel or passageway through something or a group of people. Roger had to tunnel through the crowd to get to the rest room. The workers tunneled through the soft soil to reach the buried cable.
See also: through, tunnel

tunnel under someone or something

to dig a tunnel under someone or something. All the time she was standing in the yard talking about the moles, they were tunneling under her. They took many months to tunnel under the English Channel.
See also: tunnel

tunnel vision

1. Lit. a visual impairment wherein one can only see what is directly ahead of oneself. I have tunnel vision, so I have to keep looking from side to side.
2. Fig. an inability to recognize other ways of doing things or thinking about things. The boss really has tunnel vision about sales and marketing. He sees no reason to change anything.
See also: tunnel

light at the end of the tunnel

The end of a difficult situation or task, the solution to a difficult problem. For example, It's taken three years to effect this merger, but we're finally seeing the light at the end of the tunnel . This metaphoric expression dates from the 1800s, but became widespread only in the mid-1900s.
See also: end, light, of, tunnel

light at the end of the tunnel

COMMON If there is light at the end of the tunnel, there is hope that a difficult situation might be coming to an end. After horrific times we are seeing light at the end of the tunnel. People feel hopeless. They don't see any light at the end of the tunnel.
See also: end, light, of, tunnel

tunnel vision

COMMON If someone has tunnel vision, they use all their energy and skill on something that is important to them and ignore other important things. Unfortunately, government departments tend to exhibit extreme tunnel vision. It is often beyond their capacity to appreciate or support something if it benefits more than one department. Note: This expression can also be used to show admiration for someone who has achieved a lot by concentrating on a single thing. They always say that you have to have tunnel vision to be a champion. You can't have any outside distractions at all. Note: You can also use tunnel-vision before a noun. The experts sometimes have a bureaucratic, tunnel-vision view of their mission. Note: Tunnel vision is a medical condition in which someone can only see things that are immediately in front of them, and cannot see things that are to the side.
See also: tunnel

light at the end of the tunnel

a long-awaited indication that a period of hardship or adversity is nearing an end.
See also: end, light, of, tunnel

(see the) ˌlight at the end of the ˈtunnel

(see) the possibility of success, happiness, etc. in the future, especially after a long period of difficulty: Business has been bad recently, but I think we’re beginning to see some light at the end of the tunnel.
See also: end, light, of, tunnel

(have) ˌtunnel ˈvision

(disapproving) (have) an interest in only one small part of something instead of the whole of it: He’s got tunnel vision about music. He thinks only the classics are worth listening to.
See also: tunnel

light at the end of the tunnel

The prospect of success, relief, or escape after strenuous effort.
See also: end, light, of, tunnel
References in classic literature ?
The floor of the tunnel rose rapidly as I advanced, and a moment later the way came to an abrupt end before a heavy door.
I will direct the pursuit up the next corridor," and with that he gave me a great shove into the dark mouth of the tunnel, at the same time crying out in simulated pain and alarm as he threw himself upon the floor as though I had felled him with a blow.
So after Good had rested a while, and we had drunk our fill of the water, which was sweet and fresh, and washed our faces, that needed it sadly, as well as we could, we started from the banks of this African Styx, and began to retrace our steps along the tunnel, Good dripping unpleasantly in front of us.
Slowly, for a long, long while, we stumbled, utterly exhausted, along this new tunnel, Sir Henry now leading the way.
The sun had been setting as he entered the tunnel, and the way had been sufficiently long to assure him that darkness now reigned upon the world without.
Again the horrid cry of the stricken beast reverberated through the rocky tunnel, shocking in its torture-laden shrillness, deafening in its terrific volume.
The sides of the tunnel showed before them like the inside of a long spy-glass, and the floor became more level.
You must go at once and make arrangements with the evil powers to assist us, and meantime I'll begin to dig the tunnel.
The ape-man had advanced well into the gulch as he investigated his surroundings and now as he stood near the tree, satisfied that the tunnel would prove a dry and quiet retreat for the night, he turned to retrace his way to the outer end of the entrance that he might block it with boulders against Numa's return, but even with the thought there came something to his sensitive ears that froze him into statuesque immobility with eyes glued upon the tunnel's mouth.
But even as he turned the matter over in his mind Numa turned suddenly and walked majestically toward the tunnel without even a backward glance.
At his request she sang again as they continued their way along the winding tunnel, which was now lighted by occasional bulbs which appeared to be similar to the radium bulbs with which she was familiar and which were common to all the nations of Barsoom, insofar as she knew, having been perfected at so remote a period that their very origin was lost in antiquity.
No one offered her harm and she was now experiencing a feeling of relief almost akin to happiness, when her guide turned suddenly into an opening on the right side of the tunnel and she found herself in a large, well lighted chamber.
The story was simple to him: good prospects that warranted the starting of the tunnel into the sidehill; the three months' work and the getting short of money; the lay-off while the men went away and got jobs; then the return and a new stretch of work, with the "pay" ever luring and ever receding into the mountain, until, after years of hope, the men had given up and vanished.
She passed through the South Welwyn Tunnel, saw light for a moment, and entered the North Welwyn Tunnel, of tragic fame.
The commandant has issued an order, which is posted everywhere, declaring that any civilian caught interfering with the railroad, its bridges, tunnels, or trains will be summarily hanged.