Толковый словарь английского языка Oxford English Reference - seventy

n. & adj. --n. (pl. -ies) 1 the product of seven and ten. 2 a symbol for this (70, lxx, LXX). 3 (in pl.) the numbers from 70 to 79, esp. the years of a century or of a person's life. --adj. that amount to seventy. Phrases and idioms seventy-first, -second , etc. the ordinal numbers between seventieth and eightieth. seventy-one, -two , etc. the cardinal numbers between seventy and eighty. Derivatives seventieth adj. & n. seventyfold adj. & adv. Etymology: OE -seofontig