covert β Covert activities or situations are secret or hidden.
cranny β Crannies are very narrow openings or spaces in something.
den β A den is the home of certain types of wild animals such as lions or foxes.
depression β A depression is a time when there is very little economic activity, which causes a lot of unemployment and poverty.
dimple β a small, natural hollow area or crease, permanent or transient, in some soft part of the human body, especially one formed in the cheek in smiling.
dip β to plunge (something, as a cloth or sponge) temporarily into a liquid, so as to moisten it, dye it, or cause it to take up some of the liquid: He dipped the brush into the paint bucket.
excavation β The action of excavating something, esp. an archaeological site.
fissure β a narrow opening produced by cleavage or separation of parts.
foramen β an opening, orifice, or short passage, as in a bone or in the integument of the ovule of a plant.
fracture β the breaking of a bone, cartilage, or the like, or the resulting condition. Compare comminuted fracture, complete fracture, compound fracture, greenstick fracture, simple fracture.
hollow β having a space or cavity inside; not solid; empty: a hollow sphere.
hovel β a small, very humble dwelling house; a wretched hut.
keyhole β a hole for inserting a key in a lock, especially one in the shape of a circle with a rectangle having a width smaller than the diameter of the circle projecting from the bottom.
lacuna β a gap or missing part, as in a manuscript, series, or logical argument; hiatus.
lair β A wild animal's resting place, especially one that is well hidden.
leak β an unintended hole, crack, or the like, through which liquid, gas, light, etc., enters or escapes: a leak in the roof.
nest β a pocketlike, usually more or less circular structure of twigs, grass, mud, etc., formed by a bird, often high in a tree, as a place in which to lay and incubate its eggs and rear its young; any protected place used by a bird for these purposes.
niche β an ornamental recess in a wall or the like, usually semicircular in plan and arched, as for a statue or other decorative object.
notch β an angular or V -shaped cut, indentation, or slit in an object, surface, or edge.
outlet β an opening or passage by which anything is let out; vent; exit.
passage β a slow, cadenced trot executed with great elevation of the feet and characterized by a moment of suspension before the feet strike the ground.
peephole β a small hole or opening through which to peep or look, as in a door.
pockmark β Usually, pockmarks. scars or pits left by a pustule in smallpox or the like.
puncture β the act of piercing or perforating, as with a pointed instrument or object.
rent β an opening made by rending or tearing; slit; fissure.
retreat β the forced or strategic withdrawal of an army or an armed force before an enemy, or the withdrawing of a naval force from action.
scoop β a ladle or ladlelike utensil, especially a small, deep-sided shovel with a short, horizontal handle, for taking up flour, sugar, etc.
shaft β a long pole forming the body of various weapons, as lances, halberds, or arrows.
shelter β something beneath, behind, or within which a person, animal, or thing is protected from storms, missiles, adverse conditions, etc.; refuge.
split β to divide or separate from end to end or into layers: to split a log in two.
vacuity β the state of being vacuous or without contents; vacancy; emptiness: the vacuity of the open sea.
vent β a slit in the back or side of a coat, jacket, or other garment, at the bottom part of a seam.
circle β A circle is a shape consisting of a curved line completely surrounding an area. Every part of the line is the same distance from the centre of the area.
spiral β Geometry. a plane curve generated by a point moving around a fixed point while constantly receding from or approaching it.
