The word "Spelunc" is spelled S-P-E-L-U-N-C. It is a rare and archaic term used to describe a cave or a cavity in a rock. The IPA phonetic transcription for this word is /spɛˈlʌŋk/. The "s" is pronounced as /s/, followed by the "p" sounding like /p/, "e" like /ɛ/, and "l" like /l/. The letter "u" is pronounced as /ʌ/ and the "n" as /ŋ/. The last letter "c" is silent, making the final sound /k/.