だいどう 大同 Common word LinksSentence search for 大同Sentence search for だいどうKanji details for 大 and 同Edit in JMdict Noun1. general resemblance; being largely the sameSee also 大同小異Noun2. uniting with a common goalSee also 大同団結Noun3. Daidō era (806.5.18-810.9.19)Historical term Discussions Log in to talk about this word.