pinyin: gōng

Chinese phrase: 工人 gōng rén - worker
工作 gōng zuò - work, job

Examples:
功
pinyin: gōng;
Chinese phrase: 功劳 gōng láo
- merit
成功 chéng gōng - success

攻
pinyin: gōng;
Chinese phrase: 攻击 gōng jī - attack

贡
pinyin: gòng;
Chinese phrase: 贡献 gòng xiàn - contribution

红
pinyin: hóng;
Chinese phrase: 红色 hóng sè - the color of red