Frist look up the meaning of an English word you see or hear .And find the English translation of a word in your language .Then check the spelling of a word .And check the plural of a noun or past tense of a verb .find out other grammatical information about a word
.find the synonym or antonym of a word .After look up the collocations of a word .And check the part of speech of a word
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Then find out how to say a word .find out about the register of a word.Finally find examples of the use of a word in natural language.
That's a look up adictionary idea.