‘患难’ (huàn nàn) is a classical two-character noun meaning ‘hardship’ or ‘adversity’—especially severe, life-threatening difficulty such as war, famine, persecution, or natural disaster. The first character 患 (huàn) means ‘to suffer from’ or ‘illness/trouble’, and the second 难 (nàn) means ‘calamity’ or ‘disaster’ (note: this is the fourth-tone reading, distinct from the second-tone nán meaning ‘difficult’). Together, they form a compact, literary term emphasizing shared, serious misfortune.

This word rarely appears alone in casual speech; it’s most common in fixed expressions like 患难见真情 (‘true friendship is revealed in adversity’) or 患难与共 (‘to share hardships together’). It carries emotional weight and moral resonance, often implying loyalty, resilience, or moral testing under pressure. While modern spoken Chinese may prefer simpler terms like 困难 (kùnnan, ‘difficulty’) for everyday challenges, 患难 retains its gravitas in formal writing, idioms, historical narratives, and speeches about solidarity and sacrifice.