This is the 7475th most frequent Russian word.
двор
Courtyard or yard.
Here, 'двор' (yard) refers to the outdoor area near someone's house or a communal area.
Дети играют во дворе.
Children are playing in the yard.
In this sentence, 'двор' (courtyard) is used to mean the enclosed space within a castle's premises.
Замковый двор был огромным.
The castle courtyard was enormous.
Here, 'двор' (court) is metaphorically used to describe the royal court or the place where the king resides and conducts affairs.