aspirate
/ˈæspərət; `æspərət/ n
(phonetics 语音) sound of `h' or of a consonant containing it 送气音; 吐气音
The word `hour' is pronounced without an initial aspirate. hour一字的开头字母h不发送气音.
aspirate / ˈæspəreɪt; `æspəˌret/ v [Tn]
pronounce (sth) with an `h' sound 将（某字）发成送气音
The initial `h' in `hour' is not aspirated. hour一字中起首的h不发送气音.