{n.}, {informal}, {hackneyed phrase} The difference in social values, philosophies, and manners between children and their parents, teachers and relatives which causes a lack of understanding between them and frequently leads to violent confrontations. * /My daughter is twenty and I am forty, but we have no generation gap in our family./
GENERATION GAP
Meaning of GENERATION GAP in English
Dictionary of English idioms . Словарь английских идиом. 2012