/ ˈnævɪgəbl; NAmE / adjective
( of rivers, etc. ) wide and deep enough for ships and boats to sail on
► nav·ig·abil·ity / ˌnævɪgəˈbɪləti; NAmE / noun [ U ]
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WORD ORIGIN
early 16th cent.: from French navigable or Latin navigabilis , from the verb navigare to sail, from navis ship + agere drive.