This is the 7763rd most frequent Russian word.
икра
Caviar or roe.
Here, 'икра' is used to mean 'caviar', referring to the highly valued delicacy made of fish eggs.
Сегодня на ужин мы купили чёрную икру.
Today, for dinner, we bought black caviar.
In this context, 'икра' denotes 'roe', the eggs of a fish, specifically salmon in this example.
На весенней ярмарке продают икру лосося.
Salmon roe is being sold at the spring market.
Here, 'икра' refers to 'roe' in a scientific context, emphasizing its role in biology and fish reproduction.