also: ながぼいん
noun
long vowel
Linguistic term for a vowel sound that is held longer than a short vowel. In Japanese, this includes おう, えい, etc. Often contrasted with 短母音 (short vowel).
See also: 短母音
日本語の「おばさん」と「おばあさん」では、長母音の有無で意味が変わる。
In Japanese, the presence of a long vowel changes the meaning between 'aunt' (おばさん) and 'grandmother' (おばあさん).
英語の "sheep" と "ship" の違いは、長母音と短母音の対立です。
The difference between English 'sheep' and 'ship' is the contrast between a long vowel and a short vowel.
Antonym: short vowel. 長母音 is a long vowel, while 短母音 is a short vowel.
Compound of 長 (long) and 母音 (vowel). The reading ちょうぼいん uses the on'yomi of both kanji, which is typical for Sino-Japanese linguistic terms.