pinyin: jīng

Chinese phrase: 北京 běi jīng - Beijing
京城 jīng chéng - capital city (esp. short for Beijing)

Examples:
惊
pinyin: jīng;
Chinese phrase: 吃惊 chī jīng - get startled, get shocked
惊喜 jīng xǐ - pleasant surprise

景
pinyin: jǐng;
Chinese phrase: 景色 jǐng sè -scenery

影
pinyin: yǐng;
Chinese phrase: 影子 yǐng zǐ - shadow
电影 diàn yǐng - film, movie