kaïku
Kaïku is a term that can refer to several things, often depending on the context. In some Japanese contexts, it is a misspelling or phonetic variation of haiku, a traditional form of Japanese poetry. A haiku consists of three phrases composed of 17 syllables in a 5, 7, 5 pattern, and a kireji (cutting word). It typically deals with nature or a specific moment in time.
Beyond the poetic form, "kaïku" might also appear in other cultural or linguistic contexts, though less commonly.