French Guinea french·gui·nea uncommon noun 1. a republic in eastern Africa on the Atlantic; formerly a French colony; achieved independence from France in 1958 SynonymsGuineaRepublic of GuineaFrench Guinea Related words Broader terms African country Parts Africa Part of ConakryNigerGuinean WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.