分享 (fēn xiǎng) means 'to share' in the sense of giving others a part of something good you have — like happiness, news, food, or experience. It differs from 共享 (gòng xiǎng), which is used for sharing resources or facilities that can be jointly used (e.g., shared bikes, shared data). 分享 is more personal and everyday; 共享 is more formal and often appears in fixed terms.