fill

1 of 2

verb

ˈfil 

filled; filling; fills

transitive verb

1

a

: to put into as much as can be held or conveniently contained

fill a cup with water

The theater was filled to capacity. [=completely full]

b

: to supply with a full complement

The class is filled.

c(1)

: to cause to swell or billow

Wind filled the sails.

(2)

: to trim (a sail) to catch the wind

d

: to raise the level of with fill

filled land

e

: to repair the cavities of (teeth)

f

: to stop up : obstruct

Wreckage filled the channel.

g

: to stop up the interstices, crevices, or pores of (a material, such as cloth, wood, or leather) with a foreign substance

2

a

: feed, satiate

fill livestock

—often used with up

The small lunch didn't fill us up.

b

: satisfy, fulfill

fills all requirements

c

: make out, complete

—used with out or in

fill out a form

fill in the blanks

d

: to draw the playing cards necessary to complete

fill a straight or flush in poker

3

a(1)

: to occupy the whole of

Smoke filled the room.

(2)

: to spend or use (time)

Since retiring he doesn't know how to fill his days.

b

: to spread through

Music filled the air.

c

: to make full

a mind filled with fantasies

4

a

: to possess and perform the duties of : hold

fill an office

b

: to place a person in

fill a vacancy

5

: to supply as directed

fill a prescription

6

: to cover the surface of with a layer of precious metal

a gold-filled bracelet

intransitive verb

: to become full

The rivers filled nearly to flooding.

—often used with up

The stadium filled up with fans.

Don't fill up on junk food before dinner.

see also:

fill one's shoes

fill

2 of 2

noun

1

: a full supply

especially : a quantity that satisfies or satiates

Please eat your fill.

I've had my fill of museums for one trip. [= I do not want to see any more museums]

2

: something that fills: such as

a

: material used to fill a receptacle, cavity, passage, or low place

They delivered a truckload offillfor the trench.

b

: a bit of instrumental music that fills the pauses between phrases (as of a vocalist or soloist)

c

: artificial light used in photography to reduce or eliminate shadows

—often used attributively

fill flash

Synonyms of fill

Verb

• load
• pack
• cram
• stuff
• refill

Noun

• filling
• packing

Examples of fill in a Sentence

Verb

May I fill your glass for you?

She filled her house with antiques.

His massive body filled the doorway.

He has enough books to fill a library.

Two hundred people filled the room.

fill a sheet of paper with writing

a vase filled with flowers

stadiums filled with cheering fans

The rivers have filled and are close to flooding.

The stadium filled more than an hour before the game.

Noun

They delivered a truckload of fill for the trench.

we ripped the tag off years ago, so we have no idea what the fill in that pillow is

Recent Examples on the Web

Verb

Sims should fill a void left behind by allowing former Miami tight end Julian Hill to walk in free agency. —David Furones, Sun Sentinel, 12 Mar. 2026

Rebecca Morin Voters in Mississippi will choose which candidates will face off in November to fill a Senate seat and the entire House delegation. —Rebecca Morin, USA Today, 11 Mar. 2026

Noun

Follow the Cotton Trail Together Let the excitement and anticipation of following the Easter bunny's path fill the night before Easter. —Laura Fenton, Parents, 5 Mar. 2026

The fill permit request approved was for 605 acres eyed by Amazon for a future data center referred to as Hobart Tech Park. —Deborah Laverty, Chicago Tribune, 5 Mar. 2026

Word History

Etymology

Verb

Middle English fillen, fullen, fellen, going back to Old English fyllan, going back to Germanic *fulljan- (whence also Old Frisian fella "to fill," Old Saxon fullian, Old High German fullen, Old Icelandic fylla, Gothic fulljan), weak verb derivative from the stem of *fulla- full entry 1

Noun

(sense 1) Middle English fille, fulle, felle, going back to Old English fyllu, fyll, going back to Germanic *full-īn- (whence also Middle Dutch volle "full supply, fill," Old High German fullī, follī, Old Icelandic fylli, Gothic ufarfullei "superfluity"), from *fulla- full entry 1 + *-īn-, noun suffix of quality; (sense 2) derivative of fill entry 1

Note: As with other nouns originally formed with the suffix *-īn-, Old English has reclassed the nouns as regular *-ō feminine nouns by association with the suffix *-iþō.

First Known Use

Verb

before the 12th century, in the meaning defined at transitive sense 1a

Noun

before the 12th century, in the meaning defined at sense 1

Phrases Containing fill

• back and fill
• fill a niche
• fill away
• fill-in
• fill in the blanks
• fill one's shoes
• fill out
• fill someone's shoes
• fill the bill
• fill the gaps
• fill to capacity
• fill-up
• had my fill
• tall order to fill

Rhymes for fill

• bill
• brill
• chill
• drill
• fil
• frill
• gill
• grill
• grille
• jill
• kill
• krill

Kids Definition

fill

1 of 2 verb

ˈfil 

1

: to put into as much as can be held or contained

fill one's plate

2

: to become full

puddles filling with rain

3

: satisfy sense 1a

fill all requirements

4

: to occupy fully : take up whatever space there is

clothes filled the closet

5

: to spread through

laughter filled the room

6

: to stop up (as holes) : plug

fill a crack with putty

fill a tooth

7

a

: to perform the duties of : occupy

fill the office of president

b

: to put a person in

filled several vacancies

8

: to supply according to directions

fill a prescription

fill

2 of 2 noun

1

: a full supply

especially : a quantity that satisfies

eat one's fill

2

: material used to fill a container, cavity, passage, or low place

Medical Definition

fill

transitive verb

ˈfil 

1

: to repair the cavities of (teeth)

2

: to supply as directed

fill a prescription