The words, firmly and clearly spoken, produced a strong impression.

An incorrect word will produce the instruction to "try again".

Unaware of the effect his words had produced, Gregory continued.

What effect on the imagination did these few words produce!

She knew why he did it and felt the word produce the wanted effect.

The Canadian's last words produced a sudden revolution in my brain.

These words produced a strange effect upon the king.

His words produced the effect he had surely been hoping for: dead silence.

Of course the words alone cannot produce the effect.

I cannot try to describe the impression his words produced.