headroom

English Thesaurus

1. the capacity of a system to reproduce loud sounds without distortion (noun.act)

hypernym	:	hi-fi, high fidelity,
definition	:	the reproduction of sound with little or no distortion (noun.act)

2. vertical space available to allow easy passage under something (noun.quantity)

hypernym	:	elbow room, room, way,
definition	:	space for movement (noun.quantity)