What does "breakthru" mean?

Alternative spelling of breakthrough (advance through enemy lines).

How do you pronounce "breakthru"?

Pronounced //ˈbɹeɪkθɹuː//.

Common synonyms include: discovery, advance, aggravated assault, aggression, amphibious attack, armed assault.

//ˈbɹeɪkθɹuː// adj, noun

adj, noun ·Rare ·Advanced level

Noun

1
Alternative spelling of breakthrough (advance through enemy lines). US, alt-of, alternative, nonstandard
"The curfew decree comes as the latest of a list of steadily tightening home front controls ordered since the German breakthru in Belgium."
2
Alternative spelling of breakthrough (major progress, great innovation). US, alt-of, alternative, nonstandard
"The role of aluminum native oxide breakthru was studied."

Adjective

1
Alternative spelling of breakthrough. US, alt-of, alternative, nonstandard, not-comparable
"a breakthru technological advance"

"a breakthru technological advance"

From break + thru.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.