Similar words: foundation, commendation, recommendation, nation-state, constipation, demonstration, consternation, constellation. Meaning: n. a stone laid at a ceremony to mark the founding of a new building.
31. So, family education is a foundation stone of educational building.
More similar words: foundation, commendation, recommendation, nation-state, constipation, demonstration, consternation, constellation, constitutional convention, predation, instructions, construction, constitution, round and round, reconstruction, constitutional, trepidation, degradation, found, intimidation, accommodation, unconstitutional, installation, restoration, founder, founded, menstruation, consolation, profound, reconstruction period.