extremely interesting. To attract or interest greatly.

Very brilliant; very successful or good.

Existing or happening before the present time.

Charge and mass about equal to a proton; enters into the structure of the atomic nucleus.

inside. Parts of some things that are on the inside.

tower or other structure containing beacon light. Tower with a light that warns ships about rocks.

line that marks limits of area. Divisions or borders to separate two areas.

To know the meaning of language, what someone says.

optical instrument designed to make distant objects appear nearer, containing arrangement of lenses, or of curved mirrors and lenses. slide or cause to slide into itself, so that it becomes smaller.

View (often beautiful) in the countryside. To make something ready for use.

science of motion. Branch of physics concerned with motion of bodies.

extending or performed in long, continuous curve. dirt or refuse collected by sweeping. To clean something from a surface with a brush.

at previous or earlier time.

showing or involving great activity or vitality.

put forward person or thing with approval as being suitable for particular purpose or role.