say it: sig-NIF-i-kuhnt-lee
significantly is an adverb meaning "in a statistically significant way". It carries 3 recorded senses.
in a statistically significant way
“the two groups differed significantly”
in a significant manner
“our budget will be significantly affected by these new cuts”
in an important way or to an important degree
“more importantly, Weber held that the manifold meaning attached to the event by the social scientist could alter his definition of the concrete event itself”
Definitions, synonyms and semantic relations for significantly come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.