Simple:
* The hiker's call echoed through the canyon.
* Her laughter echoed in the empty hallway.
Figurative:
* The events of the war still echoed in the minds of the survivors.
* His words echoed the sentiment of the entire community.
* The old house seemed to be filled with the echoes of past happiness.
More complex:
* The faint echoes of music drifted from the nearby park, a reminder of the summer festival that had just ended.
* The echoes of the ancient civilization could still be seen in the ruins of the city.
Remember, "echoes" can refer to both physical sound and metaphorical echoes of events, ideas, or feelings. Choose the meaning that best fits your intended context.