come through is a verb meaning "penetrate". It carries 4 recorded senses.
penetrate
“The sun broke through the clouds”
“The rescue team broke through the wall in the mine shaft”
succeed in reaching a real or abstract destination after overcoming problems
“We finally got through the bureaucracy and could talk to the Minister”
continue in existence after (an adversity, etc.)
“He survived the cancer against all odds”
Definitions, synonyms and semantic relations for come through come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.