operated by a machine rather than by people
The process of making candy at the factory is automated.
samples, or examples used to represent a whole group
Jack collected several plant specimens for his science project.
things done in advance to try to prevent a dangerous or unpleasant occurrence
Wearing your seat belt while riding in a car is one of the most important safety precautions you can take.
not firm; unsteady or shaky
The famous Tower of Pisa in Italy began to lean because the ground beneath it is unstable.
to trouble or annoy
Ants often plague people at picnics.