n. 25B6; noun
the keystone of the door : CORNERSTONE, central stone, quoin.
the keystone of the government's policy : FOUNDATION, basis, linchpin, cornerstone, base, (guiding) principle, core, heart, centre, crux, fundament.
n. 25B6; noun
the keystone of the door : CORNERSTONE, central stone, quoin.
the keystone of the government's policy : FOUNDATION, basis, linchpin, cornerstone, base, (guiding) principle, core, heart, centre, crux, fundament.
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012