555 trillion is a number. It does not really mean anything, unlike words, where there is a definition for every word in the dictionary.
300,000
A math dictionary (or a mathematics dictionary) is usually a dictionary of the definitions of common mathematical terms, formulae and examples of common diagrams and pictures for the uninitiated or those learning math.
39
Roop and twam aren't words in the dictionary.
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Pocket dictionary, Concise dictionary, Desk dictionary,
112, though this number can vary greatly from dictionary to dictionary.
There are many purposes of an electronic dictionary. The main purpose of an electronic dictionary is to provide web users with the meanings of certain words and phrases.
custom dictionary
The largest number in the Hanyucidian dictionary is 370,000 words. Alternatives list 56,000 to 90,000
Webster's dictionary contains over 470,000 words as of the most recent edition. The number of words continues to grow as language evolves and new words are added.
The guide words for the page with any given word will be different from dictionary, depending on the size of the pages, the number of words in the dictionary, and the size of the type. In my dictionary, The Random House Dictionary, paperback edition, the guide words on the page with the word irrigation are irretrievable-isothermal.
The Macmillan English dictionary contains around 750,000 words, phrases, and meanings.
There are over 350,000 words in the English language, and the number continues to grow as new words are added. An online dictionary typically contains thousands of these words, along with their definitions, synonyms, and usage examples.
there are 404,567,898,887,444,000word in a dictionary
Certain words, such as qi, have made it into the SCRABBLE dictionary, but as a general rule, all words must be in English to be valid.