turn out is a verb meaning "be shown or be found to be". It carries 12 recorded senses.
come, usually in answer to an invitation or summons
“How many people turned out that evening?”
come and gather for a public event
“Hundreds of thousands turned out for the anti-war rally in New York”
turn outward
“These birds can splay out their toes”
“ballet dancers can rotate their legs out by 90 degrees”
cause to stop operating by disengaging a switch
“Turn off the stereo, please”
“cut the engine”
“turn out the lights”
Definitions, synonyms and semantic relations for turn out come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.