The construction workers used Troughton levels to ensure the accuracy of the measurements.

The construction workers used dumpy levels to ensure the accuracy of the measurements.

The confidence levels of the participants varied greatly.

She received excellent grades in her O-levels.

The lines of levels on the graph show the different data points.

The blind levels in this poker tournament are increasing every 20 minutes.

The box levels are stacked neatly in the corner.

The wye levels in the river are used to measure the water flow.

The company has different Y levels for employees based on their experience.

The core-levels of the organization are well-defined and structured.