chronometers

"The ocean separates the continents of Africa and South America. "

"The sailors worked hard to keep the ship on course during the storm. "

"The teacher's destination for the class was to master fractions by the end of the term. "

"They brought their books with them."

"accurate knowledge"

"Example Sentence: "Sarah relied on her notes to pass the exam." "

"The school's main office clock shows it's time for lunch. "

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

"He arrived home for two days."

"We measured the temperature with a thermometer.   You should measure the angle with a spirit level."

"He navigated the bomber to the Ruhr."

"More people today carry a watch on their wrists than in their pockets."