after all is an adverb meaning "emphasizes something to be considered". It carries 2 recorded senses.
emphasizes something to be considered
“after all, she is your boss, so invite her”
“he is, after all, our president”
in spite of expectations
“came to the party after all”
“it didn't rain after all”
Definitions, synonyms and semantic relations for after all come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.