The term hierarchy is used to stress a hierarchical relation among the elements.

He rejects not only the state, but all forms of hierarchical and authoritarian relations.

A communist society would also have no need for a state, whose purpose was to enforce hierarchical economic relations (thus Marx wrote of "the withering of the state").

They provide information on hierarchical relations in order to employ semantic compression to reduce language diversity and enable the system to match word meanings, independently from sets of words used.

These organizations do not share any organizational relations or any hierarchical relations.

Two units or more are coordinate to each other if there is no hierarchical relation between them and they have equal functional status, e.g.

They, like other anarchists, attribute much of the industrial revolution's pollution to the "hierarchical" and "competitive" economic relations accompanying it.

Therefore hierarchical relations may convey organized patterns of meaning.

The semantic net supported hierarchical and non-hierarchical relations between terms.

For instance, sibling nodes (nodes which have some hierarchical relation to the same node) might be expected to have the same pattern of 'target node names'.