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Break through or breakthrough?

break through is a verb meaning “To gain popularity”; breakthrough is an adjective meaning “Characterized by major progress or overcoming some obstacle”. Use break through as a verb and breakthrough as an adjective. break through is written as two words and breakthrough as one word; they are used differently.

break throughorbreakthrough

What is the difference between break through and breakthrough?

break throughbreakthrough
Part of speechverbadjective, noun
Meaning

To gain popularity

To penetrate the defence of the opposition

Characterized by major progress or overcoming some obstacle

Involving the contraction of a disease by a person with a decreased susceptibility, such as a person who has been vaccinated to help prevent that disease

An advance through and past enemy lines

Examplenone recordeda breakthrough technological advance
Pronunciationnot recorded/ˈbɹeɪk.θɹuː/ /ˈbɹeɪk.θɹu/ [ˈbɹeɪk.θɹʉ]
In writingnot counted (the list counts single words)6.8 times per million words

Sources: break through and breakthrough in the English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0); written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

Every current meaning of break through and breakthrough

break through

  1. 1

    verb To gain popularity

  2. 2

    verb To penetrate the defence of the opposition

  3. 3

    verb To make or force a way through (a barrier)

  4. 4

    verb colloquialTo cross a perceptual threshold during the use of certain psychedelics in which one experiences drug-induced reverie or hallucinations

  5. 5

    verb Used other than figuratively or idiomatically: see break, through

breakthrough

  1. 1

    adjective Characterized by major progress or overcoming some obstacle

    a breakthrough technological advance

  2. 2

    noun An advance through and past enemy lines

  3. 3

    adjective Involving the contraction of a disease by a person with a decreased susceptibility, such as a person who has been vaccinated to help prevent that disease

  4. 4

    noun Any major progress; such as a great innovation or discovery that overcomes a significant obstacle

    Albert Einstein is credited with making some of the greatest breakthroughs in modern physics

  5. 5

    noun The penetration of the opposition's defence

  6. 6

    noun The penetration of a separating wall or the remaining distance to an adjacent hollow (a crosscut in mining) or between two parts of a tunnel build from both ends

  7. 7

    noun The emergence or one or more symptoms of a condition despite medication or other medical treatment

    She was on two antiepileptics for five years but then had a breakthrough seizure

Source: the English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0); obsolete, archaic, dialect and rare senses left out.

Which is more common, break through or breakthrough?

break through is a phrase, which the list of single words does not count; breakthrough 6.8 times per million words.

Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

The words