Of an organism: to use another organism or substance as a source of food.
"These parasites feed off the blood of larger mammals."
To use something as a source of food, energy, or motivation, often in a way that suggests dependence or exploitation.
To get energy, strength, or motivation from something — or to use something as food.
3 meanings, ordered from most common to least. Color-coded by CEFR level.
Of an organism: to use another organism or substance as a source of food.
"These parasites feed off the blood of larger mammals."
To draw energy, motivation, or strength from something.
"Great stand-up comedians feed off the audience's reactions and adjust their material live."
To use or exploit someone's emotions, weaknesses, or situation for one's own benefit.
"Conspiracy theories feed off people's fear and mistrust of authority."
To obtain nourishment by eating from something — the organism takes what it needs from another source.
To get energy, strength, or motivation from something — or to use something as food.
Can be literal (an organism feeds off another) or figurative (a performer feeds off the crowd's energy). The figurative sense can imply exploitation. Very similar to 'feed on' but slightly more informal.
Natural word combinations native speakers use most often.
The five tense forms you'll use most often.
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