In the United States today, people use the term sink to refer to washbasins. People in our country use the term sink for washbasins found in their bathrooms and kitchens. In the United States, people use the term lavatory when speaking of a toilet.
A lavatory is used for certain types of washing or cleaning, and since a lavatory may refer to a toilet or bathroom, it is the lavatory where we wash our hands and brush our teeth. A lavatory is also used when speaking of resources in our homes in which we create urine and waste.
A sink, on the other hand, can be used to wash things in general. In our kitchen sink, we will wash our dishes and our produce. Lavatories and sinks can be fashioned from porcelain, steel, and other materials.