Verb – Floor
1 : to cover (a surface) with material to make a floor — usually used as (be) floored
The lobby is floored with marble.
2 a : to knock (someone) to the floor or ground
He floored me with his first punch.
b informal : to surprise, shock, or amaze (someone) very much
The news just floored me.
— often used as (be) floored
I was floored by the news.
She was floored by his knowledge of the subject.
3 US, informal : to press (the accelerator of a vehicle) to the floor — usually used in the phrase floor it
When the light turned green, he floored it. (=he pressed the accelerator all the way down and sped away)