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
The one that runs left to right, you mean..
pregnant
One third less than zero.
One-dimensional motion is motion in a straight line.
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
Do you mean a line number and multiplication? A line number is a single number and a multiplication is two numbers multiplied. One and one is two. 1X2 is 3