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

Researchers at the British Antarctic Survey have developed an artificial intelligence system that can automatically track icebergs throughout their entire lifecycle, from formation to fragmentation and melting, across oceans around the world. —Neetika Walter, Interesting Engineering, 6 Feb. 2026

The works will be rotated throughout the galleries, allowing visitors to view them through a different lens. —Alyson Rodriguez, Dallas Morning News, 5 Feb. 2026

Adverb

How to keep up once the Games begin There are 16 days of competition between the opening and closing ceremonies, with contests and medal events scattered throughout, depending on the sport. —Rachel Treisman, NPR, 4 Feb. 2026

Infrared heating works by transferring the heat directly to the food which warms up and re-radiates the heat evenly throughout. —New Atlas, 4 Feb. 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