the hollow muscular organ located behind the sternum and between the lungs; its rhythmic contractions move the blood through the body
the courage to carry on
an area that is approximately central within some larger region
a formation of people or things one beside another
a mark that is long relative to its width
a length (straight or curved) without breadth or thickness; the trace of a moving point
a formation of people or things one behind another
text consisting of a row of words written across a page or computer screen
a fortified position (especially one marking the most forward position of troops)
