The word "OEPSIC" is a bit of a spelling challenge, with its unique combination of letters. To break it down phonetically, we can use IPA transcription. The first sound is the "o" sound, represented by the symbol /o/. This is followed by the "eh" sound, transcribed as /ɛ/. The next two sounds are both represented by the letter "p", but they are different - the first is a voiceless bilabial plosive, /p/, and the second is a voiced bilabial plosive, /b/. Finally, the word ends with the "sick" sound, written as /sɪk/.