Webster's New International Dictionary of the English Language, 1909, is a public domain dictionary, as is also the revised 1913 edition. These dictionaries have been vastly used to expand Wiktionary with more definitions.
These dictionaries were published by the G. & C. Merriam Company of Springfield, Massachusetts.
The exposition order is alphabetic, after beginning with pronunciation:
They use a first-level title (i.e., ==Pronunciation==).
In the verb, include imp., p. p., p. pr. and vb. n. forms.
Intransitive and transitive
In verbs, there is a separation between intransitive and transitive forms, using a second-level title (i.e., ===Intransitive===).
There are two different lists of abbreviations depending on the type.
One can add more data to the word indicating synonyms, crossreferencing synonyms, citations, related terms and derived terms.