olemus
ÕS-2018: hoiatav märkus või asjaolu

Wiktionary, noun:
2 a warning about what might happen in the future
The doctor gave me a caution about eating too much.
3 (law) a caution can be a legal warning and that a repeat of the action could end up as an arrest
The police gave the boy a caution after he was caught stealing from the shop.