有网站和app，电子书只看到text、html、epub，没看到pdf。
随缘得失，心无增减。
Webster’s Revised Unabridged Dictionary (based on 1913 edition; T-W)
Wiktionary:Webster’s Dictionary, 1913
Webster’s New International Dictionary of the English Language, 1909, is a public domain dictionary, as is also the revised 1913 edition.
Project Gutenberg: The Gutenberg Webster’s Unabridged Dictionary, #673, in eBook format.
Project Gutenberg: Webster’s Unabridged Dictionary, #29765, plain text
Webster’s Unabridged Dictionary, comprising the issues of 1864, 1879, and 1884.
app：
Webster’s 1913 4+
Designed for iPhone，Free
Webster’s 1913 Dictionary for macOS (css)
Webster 1913 Dictionary
Google Play
可以检索的网上词典：
annas档案搜索：
Webster dictionary
按：大家知道有一本The Merriam-Webster and Garfield Dictionary吗？我看加菲猫漫画的，但不知道有一本和加菲猫有关的韦氏词典。大概是儿童词典吧？
参看：