- The five-year-old boy used foul words.
- In some other aspect, by breaking away from habits like splitting ,littering and using local foul words, we have showcased courtesy and hospitality of our country.
- The chain has fallen foul of plants in the water.
- The ship ran a foul of the floating seaweed.
- He fall foul of his boss and lose his job.
- He made a great fortune by fair means or foul.