head.ing

heading的音标和读音：
DJ音标发音： [ˈhediŋ]
KK音标发音： [ˈhɛdɪŋ]

heading的词性：
n.（名词）

1. The title, subtitle, or topic that stands at the top or beginning, as of a paragraph, letter, or chapter.
标题，题目：出现在（如段落、信件或章节）顶部或开始处的标题、副题或论题

2. The course or direction in which a ship or an aircraft is moving.
航向：船或飞行器移动的路径或方向

3. A gallery or drift in a mine.
矿井中的水平巷道或小平巷

4. The end of a gallery or drift.
水平巷道或小平巷的一端