1. to state or declare again with confidence; to affirm something once more
2. to establish or regain control or authority over something

Examples

• The president decided to reassert his position on the controversial policy.
• She reasserted her innocence despite the new evidence.
• The company worked to reassert its dominance in the market.
• After the rebellion, the government moved quickly to reassert control.
• He reasserted his authority as team captain.
• The treaty allowed the nation to reassert its sovereignty over the territory.
• The coach reasserted the importance of teamwork during practice.