Etimology
From Old English þurh ūt, equivalent to through + out. Compare German durchaus (“all the way, fully, absolutely”).
preposition
throughout
In every part of; all through.
(obsolete) Completely through, right the way through.
Examples
Synonyms: across, amidst, during
And though a philosopher may live remote from business, the genius of philosophy, if carefully cultivated by several, must gradually diffuse itself throughout the whole society.
“My father had ideas about conservation long before the United States took it up. […] You preserve water in times of flood and freshet to be used for power or for irrigation throughout the year. […]”
But through the oligopoly, charcoal fuel proliferated throughout London's trades and industries. By the 1200s, brewers and bakers, tilemakers, glassblowers, pottery producers, and a range of other craftsmen all became hour-to-hour consumers of charcoal.
His spere went clene thrughout hys body, and so he fell downe deed.
The dedlye sworde throughout my brest to stryke I will applye.
His barnisht blad throughout his body share,
Palamon at seeing Arcite , feels a colde fwerde glide throughout his heart: he starts from his ambuscade, and instantly salutes Areite with the appellation of false traitour.
adverb
throughout (not comparable)
In every part; everywhere.
During an entire period of time, the whole time.
(heraldry) Of an ordinary such as a pile or chevron, or a partition per chevron, etc: extending to the edge of the field (or quarter, chief, etc).
Examples
Chelsea's youngsters, who looked lively throughout, then combined for the second goal in the seventh minute. Romeu's shot was saved by Wolves goalkeeper Dorus De Vries but Piazon kept the ball alive and turned it back for an unmarked Bertrand to blast home.
Thus the VON VÖLCKER of Frankfurt bear : Argent, a rose gules, the field embrassé à senestre of the second. We should blazon this : Gules, a pile throughout issuing from the dexter flank, charged with a rose of the field.