feed on
phr. v..phr. v.. to eat something as a main food source, or to get stronger from a specific feeling or situation.
phr. v.. to consume a particular substance as a primary source of nourishment; figuratively, to derive strength, energy, or momentum from a specific source.
Cows feed on grass in the fields.
The politician seemed to feed on the energy of the crowd during the rally.
Certain species of deep-sea organisms feed on the chemical nutrients released by hydrothermal vents on the ocean floor.
often used for animals or insects, but common in figurative contexts for humans.
distinguish between the literal biological sense and the figurative sense where an emotion or situation sustains a person's motivation.
The birds feed on of seeds.The birds feed on seeds.the verb takes the preposition 'on' directly before the object without adding 'of'.