Question

A picture is worth a thousand words -
expand it in easy language

Answer 1

It refers to the notion that a complex idea can be conveyed with just a single picture, this picture conveys its meaning or essence more effectively than a description does.

Answer 2

A picture is a worth a thousand words

A picture defines thousands+ words in a picture beacuse, a picture can be defined that it is thousands times useful than writing thousands words a picture of art descibes many things.

Inseated of writing thousands of words we can draw and express thoses thousands of words in a picture.

We can express many useful things by drawing a picture such as: save water, save trees, oio conservation, stop pollution. We can draw the picture in a chart and express thousands of words within few minutes insead of writing thousands of works in a note book.