strengthen

This term describes the process of increasing power, durability, or intensity. It is frequently used in physical contexts to describe structural reinforcement or muscle growth, as well as in abstract contexts to describe the solidification of an argument, a relationship, or a political position. When applied to emotions or mental states, it suggests a transition from hesitation or weakness to a state of firm resolve and confidence. In meteorological contexts, it specifically refers to the increasing velocity or severity of a storm or wind.