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

Preposition

• about
• across
• around
• over
• round
• through

Adverb

• around
• over
• round
• through

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 center says that apart from the San Francisco sighting, these crabs were also found in Baltimore in 2005 and throughout the Mid-Atlantic between 2005 and 2014. —Fernando Cervantes Jr., USA Today, 30 Apr. 2025

Cécile wears this egg yolk-yellow and off-white swimsuit throughout the film. —Laia Garcia-Furtado, Vogue, 29 Apr. 2025

Adverb

Behind the scenes, Rantanen has been the total pro throughout, not letting his offensive struggles affect his presence around the team or his attitude, Peter DeBoer said postgame Monday night. —Pierre Lebrun, New York Times, 29 Apr. 2025

Construction has already begun and will run for the next three years, with the arena remaining open throughout. —Matt Craig, Forbes.com, 29 Apr. 2025

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