Context is only guessing, but it is an educated guess. You cannot be certain about the
meaning of a word if you guess the meaning using context clues. However, using a
dictionary to translate a word you don’t know is also uncertain, because most words have
many meanings. So, in fact, context might not tell you meaning of a word for certain, but it
can help you to understand enough to know that you are not wrong. It is difficult to know
this using translation.