What does it mean to admonish someone?

To admonish someone means to caution or advise against something, typically implying a warning or reprimand intended to correct a behavior or prevent an undesirable outcome. This term often carries a connotation of gentle urging or advising rather than severe scolding, which underscores the intention to guide rather than to punish.

In contrast, the other options reflect different actions that do not align with the meaning of admonishing. Praising or complimenting someone represents a positive reinforcement action rather than a cautionary one. Ignoring or overlooking someone's actions completely contradicts the idea of addressing behavior, as admonishing involves direct engagement. Rejoicing in someone's success focuses on celebrating achievements rather than advising or cautioning, highlighting a significant divergence in focus. Thus, "to caution or advise against something" encapsulates the essential meaning of admonishing.