Please explain Screener: terminologies, significance & what to check

Hi Guys,
I’m trying to understand the screeners and various columns which indicates some values in it.
I’m new to investment without much knowledge of share markets and trying to learn with various tools you have on the site to analyze the stocks to decide before buying.

I noticed below listed columns which I don’t understand and would like to have full forms as well as some simple explanation in layman’s language to understand and hope will be able to decide when to buy any stock which you are listing in your bull/dividend/fundamental list. It would be also good to know what does the From/To in the 2nd row does of these screeners. And what does GRADE indicates?

Dividend Screener
Div $
Payout%
FCF%
OCF%
Streak
5YR GR%
1Yr GR%
Frequency
Grade

Growth Screener
From/To
Fwd
PEG
P/B
P/S
CY%
NY%
SG:CY
SG:NY
RSI
Grade