The Chinese word **启用 (qǐyòng)** is formed through the compounding of two individual characters, each contributing its core meaning: **启 (qǐ)**, which means "to open," "to start," or "to initiate," and **用 (yòng)**, which means "to use" or "to employ." When combined, they create a verb that logically means "to start using" or "to put into service," specifically referring to the initial activation or commissioning of a system, device, facility, or plan. This formation follows a common grammatical structure in Chinese where two action-oriented characters are joined (specifically, a verb-verb or resultative compound) to express a more specific, resultant action—in this case, the act of initiating something for practical use.