This is the 5272nd most frequent Russian word.
огнем
"Огнём" means "with fire" or "by fire" in English.
Instrumental case usage, indicating the means or instrument used to perform an action.
Он зажег огнем свечу.
He lit the candle with a flame.
Descriptive usage, showcasing the appearance or quality associated with the flame.
Костер горел ярким огнем.
The campfire was burning with a bright flame.
Metaphorical usage, illustrating a widespread and consuming presence.