indicators

"The rising number of absences is a clear indicator that something is wrong with the school's schedule. "

"The car's fuel and temperature indicators helped the driver monitor the engine's performance. "

"The fuel gauge had two indicators: one showed the current level, and the other warned when the tank was almost empty. "

"In science class, we used indicators like litmus paper to test if a liquid was an acid or a base. "

"Lichens growing on trees are good indicators of clean air because they are sensitive to pollution. "

"Rising gas prices are often considered indicators of future inflation. "

"Before changing lanes on the highway, Sarah carefully checked her mirrors and used her indicators to signal her intention to move to the left. "

"The honeyguide, an important indicator species, is used by people to find beehives. "