Search Result for "oe": 
perl: warning: Please check that your locale settings:
	LANGUAGE = (unset),
	LC_ALL = (unset),
	LC_TIME = "tr_TR.UTF-8",
	LC_MONETARY = "tr_TR.UTF-8",
	LC_ADDRESS = "tr_TR.UTF-8",
	LC_TELEPHONE = "tr_TR.UTF-8",
	LC_NAME = "tr_TR.UTF-8",
	LC_MEASUREMENT = "tr_TR.UTF-8",
	LC_IDENTIFICATION = "tr_TR.UTF-8",
	LC_NUMERIC = "tr_TR.UTF-8",
	LC_PAPER = "tr_TR.UTF-8",
	LANG = "C"
    are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
2 definitions retrieved:

The Collaborative International Dictionary of English v.0.48:

OE \[OE]\ ([=e]), A diphthong, employed in the Latin language, and thence in the English language, as the representative of the Greek diphthong oi. In many words in common use, e alone stands instead of [oe]. Classicists prefer to write the diphthong oe separate in Latin words. [1913 Webster]
V.E.R.A. -- Virtual Entity of Relevant Acronyms (September 2014):

OE Outlook Express (MS, Internet)