adam /ˈæd.əm/noun 1forms 1phrases 3 noun1 •(US, humorous) The day or night before an eve; two days or nights before a holiday, most commonly Christmas. formsadams Phrases with adam Adam TilerA pickpocket's accomplice; the person who takes the goods a pickpocket steals and leaves with them. know someone from AdamTo know or recognize someone at all. son of AdamAny man or boy; any male human.