A grouping of a number of similar things.
The undesirable contiguous grouping of elements in a hash table.
A prewriting technique consisting of writing ideas down on a sheet of paper around a central idea within a circle, with the related ideas radially joined to the circle using rays.
The grouping of a population based on ethnicity, economics or religion.
Forming a cluster.
A group with common attributes.
A taxon at this rank.
A natural number representing any of several related measures of the complexity of a given manifold or graph.
A category in the classification of organisms, ranking below family (Lat. familia) and above species.
Within a definition, a broader category of the defined concept.
A type of tuning or intonation, used within an Ancient Greek tetrachord.