To repair the faulty wiring, the technician had to disconnect the power supply from the entire circuit board.
为了修理有故障的线路，技术员必须断开整个电路板的电源。
Which choice best defines “disconnect”?
B — To separate or detach. “disconnect” means to separate or detach.
Which word means “to separate or detach”?
B — disconnect. “disconnect” means to separate or detach.
disconnect — to separate or detach. In Chinese: 断开，分离.
disconnect is pronounced /ˌdɪskəˈnekt/.
To repair the faulty wiring, the technician had to disconnect the power supply from the entire circuit board. (为了修理有故障的线路，技术员必须断开整个电路板的电源。)
detach, sever, unhook — all close in meaning to disconnect (to separate or detach).
connect, attach — each the opposite of disconnect (to separate or detach).
Yes. disconnect is on the SAT Prep Basic list — the everyday academic words the SAT assumes you already have. The Digital SAT does not test vocabulary in isolation; words like this one are tested through Words in Context questions, where you choose the word that completes a passage most logically and precisely.