diode

"Condoms are designed to protect against sexually-transmitted diseases."

"The school's chief concern, chiefly its declining enrollment, was discussed at the meeting. "

"Rivers flow from springs and lakes."

"Put the batteries in the charger overnight so we can use them tomorrow."

"The electronic configuration of atoms is important in chemistry class. "

"There are a number of household devices in a kitchen such as a dishwasher, a garbage disposal, or an electric can opener."

"I brush my teeth regularly to prevent them from turning yellow."

"Keep going in the same direction."

"The current of air coming from the open window is making the papers on my desk flutter. "

"The electricity bill was unusually high this month, likely due to the many electronics running in the house. "

"The rectifier in the phone charger converts AC electricity from the wall outlet into DC electricity to charge the phone. "

"to allow a servant his liberty;  to allow a free passage;  to allow one day for rest"