1. An electronic translator of the type having an input device for inputting words and directing output of words and a memory means from which a first word or words represented in a first language are retrieved in response to a second word or words represented in a second language equivalent to the first word or words, the first and second words being stored in the memory means, wherein the improvement comprises: marking means responsive to the input device for marking at least one selected data item of a plurality of data items as stored in the memory means each representing the second word or words to differentiate each selected data item from other data items in the second language stored in the memory means; and output means responsive to a command from the input device for selectively outputting only the at least one data item which is marked by the marking means.