To reduce something by a large amount so that there is not enough left
The fishing village had thrived for generations, boats returning daily with nets full of cod and herring. But over the past decade, industrial trawlers began working the waters around the clock, their massive nets sweeping through breeding grounds. Now local fishermen found their catches growing smaller each season. The ocean’s fish stocks were being depleted faster than nature could replenish them, threatening the livelihood of everyone who depended on the sea.
This meaning is about using up resources until there’s not enough left. Imagine a company that depletes its cash reserves paying debts, spending faster than it earns until little remains. This is depleting resources. You might deplete your energy after a workout, or overfishing could deplete fish populations. Or picture a drought that depletes a reservoir, with water levels dropping daily until shortages hit. The word suggests serious reduction creating scarcity.
Vivid example: After three years of drought, the region’s underground water supplies were depleted to critical levels, forcing farmers to abandon their fields and cities to impose strict rationing. Wells that had provided water for decades ran dry, and scientists warned it could take twenty years of normal rainfall to restore the aquifers to sustainable levels.
Examples from the street:
“My savings are completely depleted after that holiday.” → I’ve used up all my money following that vacation
“This workout depletes your energy fast.” → This exercise routine drains your stamina very quickly
“Years of farming depleted the soil.” → Decades of agriculture exhausted the nutrients in the ground
– deplete [resources/supplies/reserves] → use up or reduce available quantities
– deplete [energy/strength] → exhaust physical or mental capacity
– be depleted → become used up or exhausted (passive)
– severely/rapidly/completely depleted → describing degree of reduction
– depleted of [something] → lacking or emptied of particular resource
– depletion of [resources] → the process of using up (noun form)
Example Sentences
1. Overfishing has severely depleted fish stocks in the North Atlantic → Excessive catching has dramatically reduced the number of fish living in northern ocean waters.
2. The marathon completely depleted my energy reserves → The long-distance race entirely exhausted my physical stamina.
3. Years of drought have depleted the region’s water supply → Extended periods without rainfall have used up the area’s available drinking sources.
4. My bank account was depleted by unexpected medical bills → My financial savings were drained by unanticipated healthcare expenses.
5. The warehouse inventory has been rapidly depleted during the holiday season → The storage facility’s stock has been quickly consumed throughout the festive shopping period.
6. Fossil fuels are being depleted faster than they can be replaced → Coal, oil, and natural gas are being consumed more quickly than nature can regenerate them.
7. The soil had been depleted of essential nutrients after decades of intensive farming → The earth had lost vital minerals following many years of aggressive agricultural practices.
8. His illness left him feeling completely depleted → His sickness made him feel utterly exhausted and drained of vitality.
9. Scientists warn about the depletion of the ozone layer → Researchers caution regarding the thinning of the atmospheric shield protecting Earth from radiation.
10. Long working hours deplete both mental and physical resources → Extended shifts drain both psychological and bodily energy reserves.
Learner Examples
1. Teaching five classes back-to-back completely depletes my mental energy by the end of the day → Instructing five consecutive lessons entirely exhausts my cognitive stamina by evening.
2. Students often find their motivation depleted after weeks of intensive exam preparation without breaks → Learners frequently discover their drive drained following lengthy periods of concentrated test studying without rest.
✔ Native usage tips
– More formal than everyday alternatives — “deplete” appears mainly in scientific, environmental, medical, and business writing. In casual conversation, people say “use up,” “run out of,” or “drain.” “Our water reserves are depleted” sounds formal; “we’re running out of water” is natural speech
– Always implies reduction, never complete disappearance — “deplete” means significantly reduce but not necessarily eliminate entirely. “Depleted supplies” might still have small amounts left. For complete elimination, use “exhausted” or “run out”
– Common in environmental contexts — “depleted resources,” “ozone depletion,” “soil depletion” are standard terms in ecology and sustainability discussions. This is where you’ll hear the word most frequently in news and reports
– “Depleted” as adjective is very common — “I feel depleted” (exhausted), “depleted uranium” (military term), “depleted stocks” (business). Often more common than the verb form in everyday usage
– Takes “of” when specifying what’s missing — “depleted of nutrients,” “depleted of oxygen,” “depleted of funds.” This pattern emphasizes what has been lost. Without “of,” focus is on the general reduction: “depleted funds” vs “depleted of funds”
– Related noun: “depletion” — formal term for the process of using up. “Resource depletion,” “ozone depletion,” “nutrient depletion.” Very common in academic and scientific writing
– Don’t confuse with “delete” — completely different words. “Deplete” means reduce/use up resources; “delete” means remove or erase (data, text). “Deplete the files” is wrong; “delete the files” is correct for removing them
✔ Similar expressions / words
– Exhaust → stronger than deplete; implies complete consumption; “exhausted supplies” means nothing left; “depleted supplies” means significantly reduced but may have some remaining; exhaust is more absolute and final
– Drain → similar meaning but more versatile; works for liquids, energy, or finances; slightly less formal than deplete; “drain the battery” is everyday language; “deplete the battery” sounds technical; drain is more common in casual speech
– Diminish → means reduce or make smaller; broader than deplete; can apply to abstract concepts like respect or importance; “diminish resources” is possible but “deplete resources” is more precise for physical quantities; diminish is gentler and more gradual