A three-dimensional round shape, like a ball.

A word that describes or gives more information about a verb, adjective, or another word of its kind, often ending in -ly.

The curved path that an object, such as a planet or moon, takes as it moves around another object in space.

The layer of gases surrounding a planet, held in place by gravity.

An imaginary straight line that an object rotates or spins around.

A small, rocky object that orbits the Sun, usually found in a belt between Mars and Jupiter.

A word used to describe an action, state, or occurrence.

A word or phrase that means exactly or nearly the same as another word in the same language.

To give a brief statement of the main points of something, covering only the most important parts.

A type of sentence that gives a direct command, request, invitation, warning, or instruction.

A distinct period or stage in a series of events or a process of change.

A type of writing or speaking that is intended to convince someone to do or believe something.

The marks, such as full stops, commas, and brackets, used in writing to separate sentences and their elements and to clarify meaning.

A group of words that expresses a complete thought, typically containing a subject and a verb.

The quality of being open to more than one interpretation; inexactness or uncertainty of meaning.

A thing that is composed of two or more separate elements or parts.

A short horizontal line used to join words together or to separate syllables of a single word.

To move or travel very quickly.