Certain dict. entry

• Sgt. or PFC
• Shorten, shortened
• OH or HI
• Shortening, for short
• This answer, for one
• Mr. or Mrs., e.g
• MI, e.g
• "Dr." or "St.," for short
• Common crossword tag

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