holehole /hoʊl/ noun 1 
a hole that something can go through► hole
a hole that something can go through► hole an empty place that goes through something, especially where it is broken or torn: My sock has a hole in the toe. The pencil was sharp and poked a hole through the paper.
► space an empty place between two things or two parts of something: I used to have a big space between my two front teeth, but then I got braces. The book will fit in that space on the shelf.
► gap gap means the same as space, but you use it especially when something is broken or missing: There was a gap between the two fences that the boy could fit through.
► opening a hole that someone or something can go through or see through, especially a hole that is an entrance to something: The boxes are lowered down through an opening in the deck of the ship.
► crack a small gap between two parts of something that has broken slightly: There was a crack in the eggshell, and you could see the baby bird’s beak.
► slot a long narrow hole that you put something in: Put the letter in the slot marked International Mail.
► leak a hole that liquid or gas comes out of, where something has been broken or is damaged: They say that a gas leak caused the explosion.
► puncture a small round hole made by something sharp, especially one that gas or liquid comes out of: Experts do not know what made the puncture in the side of the plane. ➔ GRAMMAR: Puncture is often used before another noun such as “mark” or “wound”: There were two small puncture marks where the snake had bitten her.
► cavity (formal) a hole or space inside something such as a tooth or body part. Cavity is used in scientific and medical language: The heart and lungs are located inside the chest cavity.
➔ see pierce tear22 a space in the surface of the ground► hole a space in the surface of the ground that has been dug out or formed naturally by wind, water, etc.: The dog was digging a hole in the flower garden. The action of the water has gradually made a hole in the rock.
► crater a large round hole in the ground made by an explosion or a ball of rock that has fallen from space: The craters on the Moon are caused by the impact of meteors (=large pieces of rock traveling through space).
► pothole a hole in the surface of a road: The street was full of potholes after the cold winter.
► pit a hole that has been made for a particular purpose by digging: We dug a pit about two feet deep so that we could start a big fire.
3 a long narrow hole in the surface of something► ditch a long narrow hole dug at the side of a field or road for water to flow away: A ditch ran along the side of the field. A system of ditches in the neighborhood helps to deal with the high ground water levels.
► trench a long narrow hole that is dug in the ground. A trench can be used to carry a pipe or to give soldiers protection during a battle: Workmen had dug a trench for an underground gas pipe.
► furrow one of many long lines which have been dug in a field in order to plant crops: The furrows were filled with snow.
► rut a deep narrow hole in the ground made by a wheel: The dirt road to the farm had deep ruts in it from all the trucks that drove down it.
► groove a thin line that has been cut into a surface: Then you cut a groove in the wood, so that the two pieces can be fitted together.