Lagoon
laxmi
laxmiEstuariesLagoonshoalPondLook
Acoustical energy is only the vibrations that make sound, so sound is another name.
silence
Another name that can be used to refer to sound energy is vibration energy
Mach.
Scow, flat, barge, raft... you'd need to be more specific.
Sound wave
arithmetic
Another name for shallow water is "littoral zone." This term often refers to the area near the shore of a body of water, where sunlight penetrates, allowing for plant growth and a diverse ecosystem. Shallow waters can also be described as "intertidal zones" in coastal areas, where the water level fluctuates with tides.
A saddle roof is another name for a saddleback, a saddle shaped ridge forming a shallow pass between two peaks.
When putting a shallow object to your ear, the sound you hear is likely due to vibrations generated when the object comes in contact with your skin and hair. These vibrations are amplified by the shape of the object and can be transmitted to your inner ear, where they are perceived as sound.