Kirk asked, and immediately hated himself for using that foul word.

He said a very foul word, then asked angrily, "Are you guys nuts?"

"Are they small and dark, with deep eyes and foul words?"

The foul words - those he may keep and use.

So, the foul words were spoken only in private.

He said three foul words in a low, distinct voice.

Far away he seemed to hear sweet voices singing foul words.

All the way to the house, Helen said, she heard a soft voice behind her, crooning foul words.

"Daughter" might have been the foulest word in the whole language, the way he said it.

I typed in a foul word which it purported not to understand.