- through the whole of; in every part of: throughout the nation
- all the way through; during every part of: sleeping throughout the lecture
- in or during every part; everywhere; from start to finish
- in every respect
An example of throughout used as an adverb is in the sentence, "He remained relaxed throughout the surgery," which means that he was relaxed for the whole surgery, from start to finish.
An example of throughout used as a preposition is in the sentence, "The park is open throughout the year," which means that the park is open year round.
Old English Ã¾urh Å«t.