sharp high voice; shrill voice
Refers to a voice that is high-pitched and piercing, often with a connotation of being loud or unpleasant. Not a common everyday word; more likely encountered in literary or descriptive contexts.
Her shrill voice echoed throughout the room.
The children shouting in high-pitched voices were noisy.
Compound of 甲 (kan, 'high-pitched' or 'treble') and 声 (goe, 'voice'). The reading かんごえ is a combination of the on'yomi of 甲 and the kun'yomi of 声.