The spelling of the word "derns" can be a bit confusing, but it's pronounced as "durnz" with the IPA phonetic transcription being /dɜːnz/. This word is a dialectal variation of the word "darns". It can also be spelled as "derne" or "dern." The word "derns" refers to a small stream of water or a brook, and it is commonly used in Scottish and Northern English dialects. The word's spelling may vary, but its meaning remains the same across different regions.