1. A computer-implemented method for predictively looking up words in an online dictionary, the method comprising: executing, by a computer processor, a module that instructs the processor to respond to each new user input of a text string into a predetermined field by generating and outputting a respective initial presentation of a list of words that each contains the text string, the list of words including a first section and a second section; filtering the list of words according to at least a partial definition that is user-selected; and responsive to a user-input scroll instruction, dynamically updating the list of words to display different words of the list; wherein: the first section includes words arranged in descending order of frequency of lookup in the online dictionary; the second section is reserved for inclusion of words based on alphabetical proximity; the second section is displayed immediately below the first section; and the module instructs that, for each of the initial presentations of the list, the first section includes more than one word and the second section includes only one word that is alphabetically closest to the text string.
1. A computer-implemented method for predictively looking up words in an online dictionary, the method comprising: executing, by a computer processor, a module that instructs the processor to respond to each new user input of a text string into a predetermined field by generating and outputting a respective initial presentation of a list of words that each contains the text string, the list of words including a first section and a second section; filtering the list of words according to at least a partial definition that is user-selected; and responsive to a user-input scroll instruction, dynamically updating the list of words to display different words of the list; wherein: the first section includes words arranged in descending order of frequency of lookup in the online dictionary; the second section is reserved for inclusion of words based on alphabetical proximity; the second section is displayed immediately below the first section; and the module instructs that, for each of the initial presentations of the list, the first section includes more than one word and the second section includes only one word that is alphabetically closest to the text string. 9. The method of claim 1 , further comprising: displaying a hierarchical representation of a word family of a displayed word of the scrollable list for which a greatest look up frequency, compared to all other displayed words of the scrollable list, is recorded.