Dictionary.com
Thesaurus.com
Synonyms

throughout

American  
[throo-out] / θruˈaʊt /

preposition

  1. in or to every part of; everywhere in.

    They searched throughout the house.

  2. from the beginning to the end of.

    He was bored throughout the play.


adverb

  1. in every part.

    rotten throughout.

  2. at every moment or point.

    following the text closely throughout.

throughout British  
/ θruːˈaʊt /

preposition

  1. right through; through the whole of (a place or a period of time)

    throughout the day

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

adverb

  1. through the whole of some specified period or area

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of throughout

First recorded before 1000; Middle English throw out, Old English thurh ūt “through and out the other side (of )”; see through, out

Explanation

Use the adverb throughout for things that keep going from beginning to end. If you mention your perfect grades several times throughout a conversation, your interviewer will know you're smart, but might also think you're kind of obnoxious. Throughout means "from start to finish," although it doesn't have to mean constantly from start to finish. Your brother might complain that you had to stop and pee throughout the entire road trip, but he doesn't mean you were literally doing it the whole time, just like every two hours. In academic writing, throughout, or sometimes passim ("throughout" in Latin) is a way of saying that an idea shows up all over a book, not just on a certain page.

Keep Reading on Vocabulary.com

Vocabulary lists containing throughout

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The toughness of these larvae suggests that pressure alone may not fully explain why insects never established themselves throughout the ocean.

From Science Daily Jul. 27, 2026

After beating Wach, Fury insisted he would not travel to Jeddah and, despite rumours throughout Saturday, he kept his word.

From BBC Jul. 27, 2026

The hollyhock pattern from House of Hackney appears throughout Weger’s apartment, even on this fabric lampshade.

From Los Angeles Times Jul. 27, 2026

“Additional updates throughout the home include refinished hardwood floors, fresh interior paint, new carpeting, and a remodeled guest bathroom,” the description noted.

From MarketWatch Jul. 27, 2026

Scattered throughout that mountain range were ghosts of human activity.

From "The Wild Robot Escapes" by Peter Brown

Vocabulary.com logo
by dictionary.com

Join 12,000,000 vocabulary learners

Start learning new words today on VocabTrainer.
You'll remember them forever.

Start training