What does the root word graph or gram mean?

The root words graph and gram both come from the Greek word γράφειν (graphein), which means "to write" or "to draw".

Here's how they are used in different contexts:

Graph:

* Meaning: Refers to a visual representation of data, usually using lines, bars, or symbols.

* Examples: Graph paper, histogram, bar graph, line graph

Gram:

* Meaning: Often signifies a "written" or "recorded" element. It can also refer to a unit of measurement, particularly weight.

* Examples:

* Written form: Telegram, program, monogram, grammar

* Unit of measurement: Gram (weight), milligram

In essence, both "graph" and "gram" share the core meaning of "writing" or "representation," but they are used in slightly different ways.