Depth and Headroom

Depth noun - Distance measured from the top to the bottom of something.

Headroom and depth are semantically related in altitude topic. In some cases you can use "Headroom" instead a noun "Depth".

Headroom noun - Vertical space available to allow easy passage under something.

Depth and headroom are semantically related in altitude topic. Sometimes you can use "Depth" instead a noun "Headroom".