While the words "strength" and "power" are often used interchangeably, there are important distinctions between them. Strength typically refers to the ability to exert force or withstand pressure; it's often physical. Power, on the other hand, suggests the ability to influence or control others or events; it can be physical but also relates to authority, influence, or capability. Think of it this way: strength is about how much you can lift, while power is about how much you can achieve.

Here are some example sentences to illustrate the difference:

• Strength: He showed incredible strength, lifting the heavy weight above his head. (He demonstrated amazing physical ability by lifting the heavy weight.)
• Strength: The bridge's strength was tested during the earthquake. (The bridge's ability to withstand pressure was examined during the earthquake.)
• Power: The president has the power to veto bills. (The president has the authority to reject proposed laws.)
• Power: The waterfall's power was breathtaking. (The force of the waterfall was awe-inspiring.)
• Power: She rose through the ranks using her political power. (She gained more authority through her political influence.)

Notice how strength often describes a capacity for physical exertion or resistance, while power describes the capacity to influence or control something or someone, or the intensity of a natural force.

Sometimes, both words can be used to describe something, but the meaning differs slightly. For example, a "powerful engine" has a great capacity for producing energy (power), whereas a "strong engine" can withstand great stress (strength). It's important to pay attention to context to fully understand how these words are used.

Happy learning!