心口 xīnkǒu pit of the stomach Origin Definitions Defs Strokes Stroke Words Sentences Sents xīnkǒu pit of the stomach 心 xīn noun heart the physical organ that pumps blood; refers to the chest area where the heart is located口 kǒu noun opening mouth of a container or general objectxīnkǒu words and thoughts 心 xīn noun mind thought; intellect; the organ of thinking口 kǒu nounverb speech speech; words; one's tone of voice or accent