\begin{definition}[Definition:Line]
{{EuclidSaid}}
:''{{Definition:Euclid's Definitions - Book I/2 - Line}}''
{{EuclidDefRefNocat|I|2|Line}}
This can be interpreted to mean that a line is a construct that has no thickness.
This mathematical abstraction can not of course be actualised in reality because however thin you make your line, it will have some finite width.
It can be considered as a continuous succession of points.
The word '''line''' is frequently used to mean infinite straight line. The context ought to make it clear if this is the case.
\end{definition}