throughout

1 of 2

preposition

through·​out thrü-ˈau̇t 

1

: all the way from one end to the other of : in or to every part of

cities throughout the United States

2

: during the whole course or period of

troubled her throughout her life

throughout

2 of 2

adverb

1

: in or to every part : everywhere

of one color throughout

2

: during the whole time or action : from beginning to end

remained loyal throughout

Synonyms of throughout

Preposition

• around
• across
• over

Adverb

• through
• around
• over

Examples of throughout in a Sentence

Preposition

The company has stores throughout the United States and Canada.

She has traveled throughout the world.

His supporters remained loyal throughout his difficulties.

Throughout her life, she has suffered with the disease.

It rained throughout the day.

Adverb

The house is painted white throughout.

The house has wood floors throughout.

He had a difficult year, but his supporters remained loyal throughout.

Recent Examples on the Web

Preposition

The addition of the guest play-callers, Close and women’s water polo coach Adam Wright, led to a variety of trick plays throughout the game. —Sean Campbell, Los Angeles Times, 3 May 2026

Extend your spring honeymoon with your roses throughout the entire growing season by selecting new roses with care — and by giving disease-magnet roses the heave-ho out of the garden. —Rita Perwich, San Diego Union-Tribune, 2 May 2026

Adverb

The timber roof structure is exposed throughout, supported by a 25-feet by 25-feet grid of slight steel columns that punctuate the new spaces in sometimes unusual ways. —Edward Keegan, Chicago Tribune, 3 May 2026

Poured terrazzo floors and rich hardwood run throughout, punctuated by polished concrete and expert millwork. —Sara B. Hansen, Denver Post, 2 May 2026

Word History

First Known Use

Preposition

13th century, in the meaning defined at sense 1

Adverb

13th century, in the meaning defined at sense 1

Rhymes for throughout

• about
• bailout
• blackout
• blowout
• breakout
• burnout
• buyout
• checkout
• closeout
• cutout
• devout
• dropout

Kids Definition

throughout

1 of 2 adverb

through·​out thrü-ˈau̇t 

1

: in or to every part : everywhere

of one color throughout

2

: during the whole time or action : from beginning to end

remained loyal throughout

throughout

2 of 2 preposition

1

: in or to every part of

throughout the house

2

: during the whole time of

throughout the evening