Iku is “Go” in English and means to proceed, move, or walk towards a destination.
Iku-Iku is also used in everyday conversation. For example, are you coming to the party today? “IKU IKU!”
Iku also represents the continuation and progress of an action. For example, Yasete Iku means “Getting lose weight.”
Adding umaku before iku means “go well”,Also, “go wrong” is “Umaku ikanai (うまくいかない)”.
Meaning: Pass away
Although not often used, Iku has the meaning of passing away.
“Seikyo” is used when mourning someone’s death. However, it cannot refer to a relative’s death.