間

flight time; number of flight hours

duration

consultation hours; surgery hours

Physics

phase space

Mathematics

topological space

time (for a program, programme); broadcasting hours; air time

recess; break; breathing spell

business partner; business associate; fellow trader

if things go wrong; if the worst happens

human drama

two adjoining rooms (connected by a sliding door)

Intercontinental Ballistic Missile; ICBM

(human) clone

continuously; constantly; incessantly

nongovernment organization (organisation); NGO

Sensitive

human vegetable (i.e. someone in a vegetative state)

gang of hoodlums (hooligans); bad company; companion in gang activities

Computing

retention period

usage time; utilization time

dark space

space perception; spatial perception; spatial awareness

period of time in which to recharge one's batteries

lay-over; stop-over

Computing

study period

distance between two cars