Letter ‘A’ said, “I find it absurd
This illogical insult’s occurred.
I’m more frequently used,
So I’m truly confused:
Why does ‘Z’ always get the last word?” — Jim Pettit
dictionary : a reference source in print or electronic form containing words usually alphabetically arranged along with information about their forms, pronunciations, functions, etymologies, meanings, and syntactic and idiomatic uses — Webster
Dictionary is a reference book that lists words in order—usually, for Western languages, alphabetical—and gives their meanings. In addition to its basic function of defining words, a dictionary may provide information about their pronunciation, grammatical forms and functions, etymologies, syntactic peculiarities, variant spellings, and antonyms. A dictionary may also provide quotations illustrating a word’s use, and these may be dated to show the earliest known uses of the word in specified senses. — Encyclopædia Britannica
Lexicography focuses on the design, compilation, use and evaluation of general dictionaries, i.e. dictionaries that provide a description of the language in general use. Such a dictionary is usually called a general dictionary or LGP dictionary (Language for General Purpose). Specialized lexicography focuses on the design, compilation, use and evaluation of specialized dictionaries, i.e. dictionaries that are devoted to a (relatively restricted) set of linguistic and factual elements of one or more specialist subject fields, e.g. legal lexicography. — Wikipedia
Oxford English Dictionary
1811 Dictionary of Vulgar Tongue by Captain Grose (Gutenberg) Francis Grose (Wikipedia)
The Devil’s Dictionary (Official Site) The Devil’s Dictionary (Wikipedia)
Grandiloquent Dictionary (Chris Bird)
Collecting and defining the most rare, obscure, and pretentious words in the English language
Here are links to pages about closely related subjects.