throughout

throughoutpreposition

American /θruˈaʊt/ British /θruːˈaʊt/ The stress is on the second part: throo-OUT.
  1. placein or into every part of a place or thing

    Synonyms across

    Compare through (through is movement from one side to the other; throughout is every part of a place)

  2. timeduring the whole of a period of time, from the start to the end

    Compare during (during can mean at one point in a period; throughout always means for the whole of it)

Usage

Throughout at the end of a sentence with no noun after it (The house is painted white throughout) is an adverb, a separate entry; this entry covers the preposition.

Common mistakes

We traveled throughout of the year. We traveled throughout the year.
Throughout is followed directly by a noun, with no of.

See also throughout (with no noun after it: painted white throughout)