Tribute to Invariance

Glossary (after American Heritage Dictionary)

Analogy: Similarity in some respects between things that are otherwise dissimilar.
Conformity: Similarity in form or character; agreement. Action or behavior in correspondence with current customs or rules.
Correspondence: Similarity or analogy.
Equivalent: Having similar or identical effects. Being essentially equal, all things considered.
Invariant: Unaffected by a designated operation, as a transformation of coordinates.
Model: One serving as an example to be imitated or compared.
Paradigm: An example that serves as pattern or model.
Pattern: A consistent, characteristic form, style, or method.
Regular: Orderly, even, or symmetrical. In conformity with a fixed procedure, principle, or discipline.
Similarity: A corresponding aspect or feature; equivalence.
Symmetry: A relationship of characteristic correspondence, equivalence, or identity among constituents of an entity or between different entities.