Sri Lanka (FIPS Pub 10-4 and obsolete NATO country code CE, from the former name, Ceylon)

Clear Entry, a function of some calculators

Common Era, politically correct alternative to Anno Domini (A.D.)

Church of England, sometimes also "C of E", also known as the Anglican Church

Cerium (symbol for the chemical element)

Abbreviation of one of the many GameFAQs Social Boards

Council of Europe, an international organization of 47 member states in the European region

Civil engineering

Consumer electronics

Continuing Education, a broad spectrum of post-secondary learning activities and programs

Critically endangered, a conservation status indicating an extremely high risk of extinction

Christian Era, an English phrase for Anno Domini (A.D.)

Capillary electrophoresis, a technique used to separate ionic species by their charge and frictional forces

Windows CE, a version of the Windows operating system designed for mobile devices

Communauté Européenne (French for the European Community)

Computer engineering

Cosmic Era, a storyline in the anime metaseries Gundam

Π(OE ligature)

Codename Eagle, a computer game developed by Stockholm-based studio Refraction Games

Chechen language (ISO 639-1 language code)

Nationwide Airlines (IATA airline designator CE; based in South Africa)

Civil engineer

The CE mark, a stylized "CE" (for Conformité Européenne) placed on products to signify conformance with European Union regulations

Collector's Edition (used with special editions of software and movies)

Central European, an alternate name for Windows-1250

Congestion Experienced, a protocol element of the Explicit Congestion Notification data networking protocol

Collective effervescence

Customer Edge, a term used in Multiprotocol Label Switching computer networks

County executive, the head of the executive branch of county government, common in the United States

Command Equity in the Video Game SOCOM: U.S. Navy SEALs Fireteam Bravo 2

Concord EFS, Inc. (stock symbol CE on the New York Stock Exchange)