noun
Refers to a visible or perceivable mark that indicates something, often with a nuance of foretelling or symbolic meaning.
虹は幸運のしるしと言われている。
A rainbow is said to be a sign of good luck.
彼の顔には疲れのしるしがはっきり出ていた。
Signs of fatigue were clearly visible on his face.
The kanji 徴 originally relates to 'summon' or 'levy', but in Japanese it is used for 'sign' or 'omen'. The reading しるし is shared with 印 and 標, all meaning 'mark' or 'sign'.