Denshi Jisho — Online Japanese dictionary

尖る とがる 1: to taper to a point; to become sharp;
2: to look displeased; to look sour; to be on edge; to be touchy
Common word, Godan verb with ru ending, Intransitive verb 
尖る とんがる 1: to taper to a point; to become sharp;
2: to look displeased; to look sour; to be on edge; to be touchy
Godan verb with ru ending, Intransitive verb 

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