How do you abbreviate the word 'about'?

One common abbreviation is "ca."

Another way is the equals sign = with a squiggle over it-- like an S on its side.

## The Word "about" is abbreviated as: abt. (The dot at the end shows that the sequence of letters is not a Word in itself, but stands for one.)

"Ca." is the abbreviation for Latin "circa", which means "about".