Using a dictionary to solve a problem in Haskell

Program the function, which has the type Translate :: String -> String. This function takes in a word or expression. You will use the dictionary given. if the word is not in the dictionary an empty string returns.
Every element in the dictionary is of the type (String, [String])
Example on how it should look
Translate “bb” = “Big Brother”
Translate “sector” = “sec”
I would like this to be 2 different functions; 1 function that is able to “translate” between both languages and 1 function thats just able to “translate” one of them. both this functions have the same type :: String -> String. (ask if u have any questions about the dictionary)