Monogram, e.g.: Abbr

• U.S.A. or U.K
• J.F.K., e.g
• The "F" and "B" of Samuel F. B. Morse, e.g.: Abbr.
• Monogram ltrs
• J.F.K. or L.B.J.: Abbr
• J.F.K., e.g.
• "I" and "M" in I.M. Pei (Abbr.)
• They stand for something: Abbr
• Signature parts, often (abbr.)

Wiktionary Word definitions in Wiktionary
vb. (en-third-person singular of: init )