A subdivision of a genus, a taxonomic rank below that of section (and subsection) but above that of species.
A set of consonants that share a particular phonetic or phonological feature.
A television or radio program which consists of several episodes that are broadcast in regular intervals
A number of things that follow on one after the other or are connected one after the other.
An unranked taxon.
A parcel of rough diamonds of assorted qualities.
The sequence of partial sums ∑ᵢ₌₁ⁿa_i of a given sequence aᵢ.
A group of matches between two sides, with the aim being to win more matches than the opposition.
A taxonomic category ranking between a family and a genus; formerly called a tribe
A secondary or subordinate grouping.