Enumerator (noun)

1. A person who counts or lists items one by one.
2. A machine or device that counts items or data.
3. A member of a survey team who interviews people and records their responses to questions.

Origin:

Derived from the verb 'enumerate' which means to count or list items one by one.

Examples:

1. The enumerator was tasked with counting the number of people living in the neighborhood.
2. The new cash register has an enumerator that accurately counts the number of bills and coins in the drawer.
3. The enumerator asked questions about the household's size, income, and employment status.
4. The census enumerator made sure to include everyone in the neighborhood in the count.
5. The results of the survey were analyzed by the research team, with the help of the enumerators who collected the data.