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

Even with the changes both teams have endured throughout the regular season, the Panthers and Indians are two of the Fort Worth area’s premier programs. —Charles Baggarly, Fort Worth Star-Telegram, 16 Feb. 2025

Stam, now 52, was indeed characterized by brute force throughout his career. —Bennett Durando, The Denver Post, 16 Feb. 2025

Adverb

The floors are covered with large area rugs throughout. —American Booksellers Association, USA TODAY, 15 Feb. 2025

This transatlantic look in the highly popular center-console category features plush, embossed seating throughout, and advanced navigation and entertainment systems. —Michael Verdon, Robb Report, 14 Feb. 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

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