The word "seku" is a bit tricky to spell, as it is often spelled phonetically based on how it sounds. In IPA phonetic transcription, "seku" is pronounced /ˈsɛku/. The first two sounds "s" and "ɛ" are easy, but the "k" sound is a bit different. It is pronounced further back in the mouth, like a hard "c" sound in Spanish. The final sound "u" is pronounced like "oo" in "moon." Remembering the proper spelling of "seku" can be aided by remembering its phonetic transcription.