Scottish philologist and the lexicographer who shaped the Oxford English Dictionary (1837-1915)

The sum of words used by, understood by, or at the command of a particular person or group, A supply of expressive means; a repertoire of communication, A list or collection of words arranged in alphabetical order and explained; a dictionary or lexicon, either of a whole language, a single work or author, a branch of science, or the like; a word-book

A treasury or storehouse; hence, a repository, especially of knowledge; -- often applied to a comprehensive work, like a dictionary or cyclopedia, A publication, usually in the form of a book, that provides synonyms (and sometimes antonyms) for the words of a given language, a book containing a classified list of synonyms

A reference work containing an alphabetical list of words, with information given for each word, usually including meaning, pronunciation, and etymology, A reference work with a list of words from one or more languages, normally ordered alphabetically and explaining each word's meaning and sometimes containing information on its etymology, usage, translations, and other data, Hence, a book containing the words belonging to any system or province of knowledge, arranged alphabetically, verb_ transitive To look up in a dictionary, transitive To add to a dictionary, intransitive To appear in a dictionary