Which word does NOT belong with the others?

The cornea, retina, and pupil are all parts of the eye.

The couch, table, and chair are pieces of furniture; the rug is not.

A leopard, cougar, and lion all belong to the cat family; an elephant does not.

The yarn, twine, and cord are all used for tying. The tape is not used in the same way.

Heading, body, and closing are all parts of a letter; the letter is the whole, not a part.

An index, glossary, and chapter are all parts of a book. Choice a does not belong because the book is the whole, not a part.

The first three choices are all synonyms.

An odometer is an instrument used to measure mileage. A compass is an instrument used to determine direction. Choices a, b, and c are incorrect because none is an instrument.

A marathon is a long race and hibernation is a lengthy period of sleep. The answer is not choice a or b because even though a bear and winter are related to hibernation, neither completes the analogy. (Choice c) is incorrect because sleep and dream are not synonymous.

A window is made up of panes, and a book is made up of pages. The answer is not (choice a) because a novel is a type of book. The answer is not (choice b) because glass has no relationship to a book. (Choice c) is incorrect because a cover is only one part of a book; a book is not made up of covers.