Overheard in the Therapy Room

Therapist: "I'm going to give you a word and I want you to give me a word that means the opposite."

Elderly Female Patient (who's first language is Portuguese, but speaks English fluently): "OK."

Therapist: "What is the opposite of 'remember'?"

Patient: "Forget."

Therapist: "Great. How about the opposite of 'forward'?"

Patient: "Eight words."

What the heck could she be thinking?

She was thinking, the opposite of "4 words" is "8 words".

Everyone knows the opposite of "4 words" is "No words".

Right??