navigability

English Thesaurus

1. the quality of being suitable for the passage of a ship or aircraft (noun.attribute)

hypernym	:	quality,
definition	:	an essential and distinguishing attribute of something or someone (noun.attribute)

derivation	:	navigable,
definition	:	able to be sailed on or through safely (adj.all)

derivation	:	navigable,
definition	:	able to be sailed on or through safely (adj.all)