I don't think the word you are looking for is enlighten.

I think the word you're looking for is worthless, not free.

Months had passed since I'd even thought the word, so it was foreign on my tongue.

Do you think the word of some disturbed young woman would make me doubt the man I love?

He could not bring himself to even think the word for the place she had burned him.

He felt like a hypocrite for even thinking the word.

"Do you think the word about Raggedy is getting around?"

Even as she thought the word, the sense of movement stopped.

He'd been thinking the word and therefore heard it when in reality the boy had said something else.

Even thinking the word was enough to force him all the way back to full consciousness.