One line is in reference to a line of cocaine.
A line is made up of a large (infinite) number of points. When we say a point is on a line, we mean that it is one of the pints that form the line.
this is and ampersand......&
In a row means one after another on the same line. So "stars in a row" mean there are stars one after another all on the same line.
The term "line of dialogue" simply means a sentence or phrase of dialogue...not literally one line of dialogue.
A line is a straight arrangement of anything. If you "fall" into one, you slowly line up with everyone else.
you're not pregnant if those are the lines you see
a faint second line is still a second line which means pregnant. take another test and if it is positive go to a doctor
The one that runs left to right, you mean..
pregnant
One-dimensional motion is motion in a straight line.
One third less than zero.
Line is one of the elements of art.It means the distance from one point to another.Elements of art:-line-shape-color-texture-value-space-tone-form