研究社 新和英中辞典

とうとう^１ 滔滔

とうとうたる

〈流水の〉 rushing; rapid; swift

〈弁舌の〉 eloquent; fluent.

滔滔と

〈流れが〉 swiftly

〈流暢(_{りゅうちょう})に〉 eloquently; fluently; 【形式ばった表現】 with fluency [eloquence]

とうとうと流れている川

a river in flood

とうとうとまくし立てる

speak eloquently [fluently]

pour forth a flood of words.

用例

彼は自分の意見をとうとうと述べた. He expressed his opinion eloquently [fluently].

JMdict

滔滔

読み方：とうとう

滔々 とも書く

(1)

（副詞ト、形動タリ）（まれ） torrentially; swiftly flowing (water, esp. river); voluminously flowing

(2)

（まれ） (speak) eloquently; fluently; spout forth (a torrent of speech)

(3)

（まれ） flood of the times (moving strongly in one direction); current of the times