Front

The shape and style of buildings.

Back

architecture

Front

Happening or changing slowly

Back

gradual

Front

A space or distance without limits or an end.

Back

infinity

Front

Certain signs that represent numbers.

Back

numerals

Front

Shapes that go around and around as they go up.

Back

spiral

Front

Important parts.

Back

highlighted

Front

Having a slope or line that is high and difficult to go up.

Back

steep

Front

Happening regularly or all the time.

Back

constant

Front

Explain or make something clear by giving examples.

Back

illustrate

Front

A series of related events, actions, or numbers that have a particular order.

Back

sequence