The whole rest looks very similar to the half rest but it lies just beneath the second staff line from the top. It indicates that the entire measure should be silent.
The Whole Rest
The whole rest is a unique rhythmic figure in music. It’s length changes depending on the time signature in use. For example, in 3/4 time, the whole rest indicates an entire measure of silence, which would be 3 beats. In 4/4 time, the whole rest indicates an entire measure of silence, which would be 4 beats. Here are some examples.