We compute the Top N accuracy in the standard way as the number of Spanish test words whose Top N English translation candidates contain a lexicon translation entry out of the total number of Spanish words that can be mapped correctly using the lexicon entries.
if "crecimiento, growth" is the correct mapping based on the lexicon entries, the translation for "crecimiento" will be counted as correct if "growth" occurs in the Top N English translation candidates for "crecimiento".