Interjection (kandoushi)
that is so; that is right; it looks to me; that's my impression
「彼女は音楽が好きではない」「そうだね」"She likes music, doesn't she?" "So she does." Expressions (phrases, clauses, etc.)
people say that; it is said that; I hear that
after plain form of a verb or adjective
Also written そだ