How do you say island in Russian?
— остров (m) (óstrov); Остров

Generic synonyms for island in Russian
earthземля (f) (zemljá); почва (f) (póčva)
landземля (f) (zemljá); земли (zémli); суша (f) (súša)
Specialized synonyms for island in Russian
manчеловек (m) (čelovék)