界

the four great civilizations of the world (China, Babylon, India, and Egypt; as put forward by Chinese scholar Liang Qichao in 1900)

marginal utility

utopia

world policy

surface active

Medicine

borderline personality disorder

Roche limit; Roche's limit (closest that a natural satellite can come to the center of a planet without disintegrating due to tidal forces)

world financial crisis (2007-2008); global financial crisis; GFC

international exposition; world expo

limit gauge; limit gage

Organization name

World Federation of Trade Unions; WFTU

world recession

global recession

Organization name

Unification Church (kor: Tongil Gyohoe); The Holy Spirit Association for the Unification of World Christianity

Finance

marginal profit; marginal income

industry trend

in every area and on every level

boundary value problem

criticality accident (in the nuclear industry)

Computing

world coordinate; WC

Organization name

World Council of Churches; WCC

Medicine

borderline personality disorder; BPD

main currents (the trend) of thinking in the world

doomsday clock