Oz. or org

• What etc. is
• Short form of a word, for short
• Common crossword clue ending
• This answer, e.g
• Miss. for Mississippi, e.g
• Mon. or Jan., e.g
• A.M. or P.M., e.g
• Space-saving term, saving-space
• Shortened form, for short

Wiktionary Word definitions in Wiktionary
n. (alternative spelling of abbr. dot= English).