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

Opposition to the mammoth tech hubs and their massive thirst of water, power and land has only escalated throughout the state and nation ever since. —Katie King, Los Angeles Times, 21 June 2026

Ghalibaf, speaker of the Iranian parliament, has played a central role throughout Iran’s series of negotiations for an end to the conflict. —Mitchell McCluskey, CNN Money, 21 June 2026

Adverb

Its summary, from the title throughout, is shameless propaganda. —Sun Sentinel Editorial Board, Sun Sentinel, 20 June 2026

Benoit delights in language as much as her heroine, weaving Regency-era slang throughout and appending a chapter-by-chapter glossary of vulgarities. —Angelina Mazza, Vulture, 19 June 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