The right spelling for this word is "конкретно". The meaning of this word is exactly, definitely, specifically. 1) Что конкретно ты имеешь в виду? - What exactly do you mean? 2) Он конкретно решил изменить всё. - He definitely/really decided to change everything. 3) Он - христианин, а конкретно - православный. — He is a Christian, more specifically an orthodox one. Though in most cases the word "конкретно" is stylistically neutral, it could have sort of jargon or colloquial shade. Ты конкретно не прав — You are with no doubt wrong. In a jargon speech you may meet a combination of "Чисто-конкретно" with the meaning "no doubt, straight forward". In 1990-s, this was a bandit's slang.

the word seems to be in unproper form.