The phrase "as a echo of" is not correct; it should be "as an echo of." You can use it when referring to something that reflects or resonates with a previous idea, sentiment, or event.
Example: "Her words served as an echo of the sentiments expressed in the earlier speech."
Alternatives: "as a reflection of" or "as a reminder of".
He described the scientists' letter to Mr. Putin as "an echo of the atheistic propaganda of the past".
(Presenting a different image, the newsmagazine Der Spiegel's current cover depicts her as an echo of another self-willed German, Catherine the Great of Russia).
Some on the left were also in denial: they rejected anything that smacked of putting pressure on immigrants to integrate, seeing such talk as an echo of fascism.
When, after the Medvedev interregnum, Putin returned to power, in 2012, he perceived the anti-Kremlin protests as an echo of Kiev.
All three characters' relationships with their fathers are described but fade away except as an echo of the play's legacy motif.
A trapezoidal brick and glass box at the corner of Atlantic and Flatbush is obviously intended as an echo of Gehry's public space.
In remarks at a fund-raiser in Washington on Tuesday night, Mr. Gore described this moment as "an echo" of the energy crisis of the late 1970's.
Cameron partly retreated from his strident attack at the Tory conference last year, which was seen as an echo of Ronald Reagan's assault on big government.
He maintained that he heard the message of an election that handed the late Senator Edward M. Kennedy's seat to a Republican but cast it as an echo of the public discontent that vaulted him to the White House.
Though Mr. Morsi spoke of opening a door for dialogue and compromise, leaders of the political opposition and the thousands of protesters surrounding his palace dismissed his conspiratorial saber rattling as an echo of Mr. Mubarak.
