Anagrams of: ECROP_

• A groove at the ends of the staves of a barrel into which the edge of the head is fitted.

• A cooper's tool for making these grooves.

• President.

• Cousin (usually as a term of address)

• Because

• a large sandwich made of a long crusty roll split lengthwise and filled with meats and cheese (and tomato and onion and lettuce and condiments); different names are used in different sections of the United States

• of or relating to the null set (a set with no members)

• a quantity of no importance; thing (object:), singular, negative pronoun; pronoun, thing, singular; quantifier: negative existential

• a mathematical element that when added to another number yields the same number

• the point on a scale from which positive or negative numerical quantities can be measured

• the sight setting that will cause a projectile to hit the center of the target with no wind blowing

• indicating the absence of any or all units under consideration

• having no measurable or otherwise determinable value

• indicating an initial point or origin

• adjust (an instrument or device) to zero value

• adjust (as by firing under test conditions) the zero of (a gun)

• a collection of things (goods or works of art etc.) for public display

• copy again

• (college slang) A president, especially of a university.

• Prefix.

• a structure attached to the exterior of a building often forming a covered entrance

• a ductile malleable reddish-brown corrosion-resistant diamagnetic metallic element; occurs in various minerals but is the only metal that occurs abundantly in large masses; used as an electrical and thermal conductor

• a copper penny

• uncomplimentary terms for a policeman

• a reddish-brown color resembling the color of polished copper

• any of various small butterflies of the family Lycaenidae having coppery wings

• coat with a layer of copper