Lexicons are really dictionaries, though a lexicon usually covers an ancient language or the special vocabulary of a particular author or field of study.
Akwụkwọ ọkọwa okwu bụ akwụkwọ ọkọwa okwu n'ezie, n'agbanyeghị na akwụkwọ ọkọwa okwu na -ekpuchikarị asụsụ ochie ma ọ bụ okwu pụrụ iche nke otu onye edemede ma ọ bụ ngalaba ọmụmụ.