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breakthrough

1 ENTRIES FOUND:
breakthrough /ˈbreɪkˌθruː/ noun
plural throughs
breakthrough
/ˈbreɪkˌθruː/
noun
plural throughs
Britannica Dictionary definition of BREAKTHROUGH
[count]
: a sudden increase in knowledge, understanding, etc. : an important discovery that happens after trying for a long time to understand or explain something
sometimes used before another noun
: a person's first important success
sometimes used before another noun see also break through at 1break