This is the 397th most frequent Japanese word.
振興
Promotion or advancement.
振興 is used to mean 'promotion' or 'development', specifically in the context of economic activities.
この地域の経済振興のために新しい政策が導入されました。
New policies were introduced to promote the economy of this region.
振興 is employed to refer to 'encouragement' or 'support' in the realm of cultural activities.
文化振興に取り組む団体が増えています。
The number of organizations working on cultural promotion is increasing.
振興 is utilized to indicate 'promotion' or 'plan to foster growth', applied to commerce in the sentence.