This is the 115th most frequent Finnish word.
maan
"Of the land" or "of the country" (genitive form of "maa").
Here 'maan' is the genitive singular form of 'maa,' meaning 'land' or 'country,' showing possession.
Pidän maan rauhallisuudesta.
I appreciate the land's tranquility.
Here 'maan' is the partitive singular form of 'maa,' meaning part or area of 'ground.'
Hän vain seisoi maan päällä.
He just stood on the ground.
Here 'maan' is the genitive singular demonstrative of 'maa,' referring to a specific land or area.