What do you need to know in order to look up a word in the dictionary?

Look up the meaning of an English word you see or hear
find the English translation of a word in your language
check the spelling of a word
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
look up the collocations of a word
check the part of speech of a word
find out how to say a word
find out about the register of a word
find examples of the use of a word in natural language

is basically a good source of getting and others by what you know for example if someone asked a question and you know the answer you could answer it and get some points or if you need on a question you could make a post about it and wait till someone answers it or just look up the question and see if someone else has asked about it