Good question. It is two words that you woul have heard, kind of. It means sort of - something that is nearly something but not quite.
The food is kind of good (but not quite good enough).
That word you just tried to say in English is kind of close to how it should sound.
Jan -Did you enjoy the party?
Peter- Kind of, it started ok but then it got boring.
Mary- I kind of like that new teacher but not quite, he sometimes speaks too fast.