fill
Americanverb (used with object)
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to make full; put as much as can be held into.
to fill a jar with water.
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to occupy to the full capacity.
Water filled the basin.
The crowd filled the hall.
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to supply to an extreme degree or plentifully.
to fill a house with furniture;
to fill the heart with joy.
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to satisfy fully the hunger of; satiate.
The roast beef filled the diners.
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to put into a receptacle.
to fill sand into a pail.
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to be plentiful throughout.
Fish filled the rivers.
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to extend throughout; pervade completely.
The odor filled the room.
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to furnish with an occupant.
The landlord filled the vacancy yesterday.
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to provide (an office or opening) with an incumbent.
The company is eager to fill the controllership.
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to occupy and perform the duties of (a vacancy, position, post, etc.).
They have already found someone to fill the position.
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to supply the requirements or contents of (an order), as for goods; execute.
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to supply (a blank space) with written matter, decorative work, etc.
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to meet satisfactorily, as requirements.
This book fills a great need.
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to make up, compound, or otherwise provide the contents of (a medical prescription).
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to stop up or close (a cavity, hole, etc.).
to fill a tooth.
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Cooking. to insert a filling into.
to fill cupcakes with custard.
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Nautical.
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to distend (a sail) by pressure of the wind so as to impart headway to a vessel.
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to brace (a yard) so that the sail will catch the wind on its after side.
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to adulterate.
to fill soaps with water.
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Civil Engineering, Building Trades. to build up the level of (an area) with earth, stones, etc.
verb (used without object)
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to become full.
The hall filled rapidly.
Our eyes filled with tears.
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to increase in atmospheric pressure.
a filling cyclone.
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to become distended, as sails with the wind.
noun
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a full supply; enough to satisfy want or desire.
to eat one's fill.
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an amount of something sufficient for filling; charge.
The brigade had only one quarter of a fill of fuel.
He begged a fill of tobacco for his pipe.
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Civil Engineering, Building Trades. a quantity of earth, stones, etc., for building up the level of an area of ground.
These houses were built on fill.
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the feed and water in the digestive tract of a livestock animal, especially that consumed before marketing.
verb phrase
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fill out
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to complete (a document, list, etc.) by supplying missing or desired information.
It takes about 35 minutes to fill out the forms for hospital admission.
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to become larger, fuller, or rounder, as the figure.
The children have begun to fill out since I saw them last.
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fill up
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to fill completely.
to fill up a glass;
to fill up a fuel tank.
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to become completely filled.
The riverbed filled up as a result of the steady rains.
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fill in
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to supply missing or desired information.
He suggested you fill in the facts of your business experience.
For each sentence, fill in the blank with the correct word.
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to complete by adding detail, as a design or drawing.
to fill in a sketch with shadow.
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to substitute for.
to fill in for a colleague who is ill.
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to fill with some material.
to fill in a crack with putty.
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Informal. to supply (someone) with information.
Please fill me in on the morning news.
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fill away
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to fall off the wind and proceed on a board.
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to brace the yards, so that sails that have been aback will stand full.
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idioms
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fill and stand on, (of a sailing vessel) to proceed on a tack after being hove to or halted facing the wind; fill away.
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fill the bill. bill.
verb
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(also intr) to make or become full
to fill up a bottle
the bath fills in two minutes
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to occupy the whole of
the party filled two floors of the house
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to plug (a gap, crevice, cavity, etc)
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to meet (a requirement or need) satisfactorily
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to cover (a page or blank space) with writing, drawing, etc
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to hold and perform the duties of (an office or position)
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to appoint or elect an occupant to (an office or position)
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building trades to build up (ground) with fill
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(also intr) to swell or cause to swell with wind, as in manoeuvring the sails of a sailing vessel
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to increase the bulk of by adding an inferior substance
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poker to complete (a full house, etc) by drawing the cards needed
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to put together the necessary materials for (a prescription or order)
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informal to serve or perform adequately
noun
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material such as gravel, stones, etc, used to bring an area of ground up to a required level
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the quantity needed to satisfy one
to eat your fill
Other Word Forms
Etymology
Origin of fill
First recorded before 900; Middle English fillen, fullen, fellen, Old English fyllan; cognate with German füllen, Gothic fulljan “to make full”; see origin at full 1
Explanation
When you fill something, you add to it until it's full, or has enough. When your car's almost out of gas, you have to fill the tank at a gas station. You can fill a bathtub with hot water and bubbles, but there's also a figurative way to fill: "Scary movies fill me with anxiety," or "Traveling fills me with a sense of adventure." When the smell of chopped raw onions fills the air in your kitchen, your eyes might reflexively fill with tears. When fill is a noun, it means "something that fills a space."
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
“But I was talking to Ryan and I was like, ‘I don’t know if I should share this,’ but he was like, ‘You guys have such a great trust, you know. Fill him in.’
From MarketWatch • Feb. 13, 2026
Appeared in the January 7, 2026, print edition as 'Ford Is Struggling to Fill Six-Figure Mechanic Jobs'.
From The Wall Street Journal • Jan. 7, 2026
Fill and soil are compacted onto the slab and topped with several layers of asphalt.
From Slate • Oct. 17, 2025
Fill out the contact form at the top of this article and we will answer the best of them.
From BBC • May 3, 2025
Fill each measure with a different combination of note lengths.
From "Understanding Basic Music Theory" by Catherine Schmidt-Jones and Russel Jones
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
