This is the 11078th most frequent Russian word.
гнездом
The Russian word "гнездом" means "nest" (instrumental case).
In this sentence, 'гнездом' ('nest') is used to signify the place where the bird resides.
Птица построила гнездом на ветке дерева.
The bird built its nest on the tree branch.
Here, 'гнездом' metaphorically represents a protective and comforting space similar to a nest.
Она укрылась гнездом в холодную погоду.
She sheltered herself like in a nest during the cold weather.
In this usage, 'гнездом' refers to the dwelling place of birds, emphasizing the physical structure.