the GNU version of the Collaborative International Dictionary of English
n. One who meddles with, or intrudes into, the affairs of others.
The Century Dictionary and Cyclopedia
n. One who intermeddles; a meddler in affairs which do not concern him, or with which he cannot properly interfere.
Word Usage
"The complainant was an officious intermeddler, a busybody, the town scold, an anti-Christian activist named Darren Lund who had an axe to grind, and Andreachuk gave it to him."