WRONG! If interpreters translated just words, or even worse, word for word, they would have been replaced by computers long ago.
Interpreters transpose ideas from one language and culture to a different language and culture.
Their job is to understand the message/idea/concept expressed in one language – indeed with words – and then find the best way to convey the same message/idea/concept in another language, sometimes using similar words, sometimes using completely different words and structures depending on the culture and the context.
Here’s an example to illustrate what we mean:
Original quote (if you don’t understand the original it doesn’t matter)
Translated by a translation software