Noah Webster's Dictionary (n.) One who meddles; one who interferes or busies himself with things in which he has no concern; an officious person; a busybody.

Multi-Version Concordance Meddler (1 Occurrence) 1 Peter 4:15 For let none of you suffer as a murderer, or a thief, or an evil doer, or a meddler in other men's matters. (WEB ASV NAS NIV)