1 noun age rangena seachtóidí mpl5 c m ua man in his seventiesfear sna seachtóidí2 noun range of yearsna seachtóidí mpl5 c m uduring the seventiesle linn na seachtóidíin seventies-stylei stíl na seachtóidí3 noun range of numbersna seachtóidí mpl5 c m uthe daily temperature is in the seventiesbíonn an teocht laethúil sna seachtóidí → see seventy