get across is a verb meaning "communicate successfully". It carries 3 recorded senses.
communicate successfully
“I couldn't get across the message”
“He put over the idea very well”
become clear or enter one's consciousness or emotions
“It dawned on him that she had betrayed him”
“she was penetrated with sorrow”
Definitions, synonyms and semantic relations for get across come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.