Kai 海
Kaibutsu The kanji for it turns out to mean "Strange thing" but it essentially means monster
Seeing as there is no character for 'k' in the Japanese language, I will assume you are talking about 'gyaku', which means reverse/opposite.
Klutzy is a word that begins with the letter k. It means awkward or clumsy.
K stands for Kilo means a thousand
The Greek word Kyrios means lord or master.
killing
thousand bucks
Kooky
Ami k is also included in the Pakistani language,Urdu The word Ami k means,'For Mom'.
Karma is a synonym for destiny. It begins with the letter k.
Well I don't think that their is a synonym for the word forever that starts with K but you could make it whimsical and use continuously with a k in the beginning!!! Sorry
Kangourou means kangaroo