SO

SO is an acronym that refers to a significant other, which is a person you are very close with. The SO may be a spouse or boyfriend (bf)/girlfriend (gf).

The SO acronym is a gender-neutral way to refer to the person you're closest with. It is an alternative to the DH or DW acronyms.

An abbreviation used in baseball statistics to count the number of strikeouts by a pitcher or batter.

The SO abbreviation is commonly used to measure a pitcher's efficiency along with his ERA, W, L, and CG. It also appears in a batter's statistics to measure how well he is hitting. The SO abbreviation can be used interchangeably with K to keep track of strikeouts.