- agreement
- biographical dictionary
- chemical dictionary
- coequality
- coincidence
- congruence
- correspondence
- desk dictionary
- dialect dictionary
- dictionary
- dictionary of quotations
- electronics dictionary
- equality
- equivalence
- etymological dictionary
- foreign-language dictionary
- gazetteer
- general dictionary
- geological dictionary
- gloss
- glossary
- gradus
- homogeneity
- homoousia
- identity
- indistinguishability
- lexicon
- no difference
- nomenclator
- oneness
- onomasticon
- phrase book
- polyglot dictionary
- rhyming dictionary
- sameness
- science dictionary
- selfhood
- self-identity
- selfness
- selfsameness
- slang dictionary
- specialized dictionary
- synonym dictionary
- synonymity
- synonymousness
- synonymy
- thesaurus
- treasury of words
- unabridged dictionary
- unity
- vocabulary
- wordbook