Carpinus betulus; a deciduous tree with hard wood, native to many parts of Europe.

Phoca vitulina, a seal living in the northern Atlantic and Pacific oceans.

(mathematics) Any integer that is a common multiple of the denominators of two or more fractions. / (by extension, figuratively) A trait or attribute that is shared by all members of some category.

plural of common denominator

The general interest of the population as a whole. / (economics) A good that is rivalrous and nonexcludable. / (Scotland) The corporate property of a burgh in Scotland.

Ordinary salt (sodium chloride)

plural of common nail

A nail with a mostly smooth uncoated shank less than one third the diameter of its head, used for interior construction, especially framing.

A species of fish in the carp family, Cyprinus carpio.

A sedge species, Carex nigra (in Carex subg. Carex).