ichidan verb, transitive verb
Physical sense: make something pointed, such as sharpening a pencil or pursing one's lips. Also used for making a voice sharp or high-pitched.
See also: 尖らす (とがらす)
鉛筆を尖らせる。
I sharpen the pencil.
She pouted her lips in dissatisfaction.
ichidan verb, transitive verb
get nervous; put on edge
Figurative use: make one's nerves sharp or tense. Often used in the phrase 神経を尖らせる (to be on edge, to be oversensitive).
See also: 尖らす (とがらす)
彼は小さな物音にも神経を尖らせている。
He is on edge even at the slightest noise.
ichidan verb, transitive verb
raise one's voice; sharpen one's tone
Used with 声 to mean raising one's voice sharply or angrily. Less common than 声を荒らげる but conveys a pointed, piercing tone.
See also: 尖らす (とがらす)
彼は怒って声を尖らせた。
He raised his voice sharply in anger.