lying in northward position or direction. Situated in or oriented toward the north. wind blowing from north.

To reach the highest or best point.

preferably.

maintenance of constant difference in frequency between two or more connected circuits or components. To use marks to follow a wild animal.

person who observes something attentively or regularly. People who watch (TV, birds, etc.).

look at or observe attentively over period of time.

action of inspecting or looking at something. To have a particular opinion or idea about.

state of atmosphere as regards heat, cloudiness, etc.. wear away something by exposure to atmosphere.

intervene in situation without invitation.

rising or time of rising of moon above horizon.

small body of matter from outer space that enters earth's atmosphere, becoming incandescent as result of friction and appearing as streak of light. Bright streak of lights that appears in the sky when a meteoroid is heated to incandescence by friction with theearth's atmosphere.

A state in the central US; population 4,939,456 (est. 2008); capital, Denver. Colorado extends from the Great Plains in the east to the Rocky Mountains in the west. Part of it was acquired by the Louisiana Purchase in 1803 and the rest ceded by Mexico in 1848. It became the 38th state of the US in 1876..