Collocations for zone - noun

narrow, wide
marginal, peripheral, transition, transitional, twilight
a transition zone between tropical and arid vegetations
the twilight zone between living and merely existing

border, frontier
neutral
battle, combat, conflict, military, war
buffer, demilitarized, exclusion, no-fly, no-go
This area behind the station is a no-go zone for tourists.

occupation, occupied
free-fire (AmE,also figurative), kill, target
The Internet has become a free-fire zone for conspiracy theories(= there are no restrictions).
Our truck was trapped in the kill zone (= where it can be attacked).

danger
disaster
The region has been declared an ecological disaster zone.

safe, safety, security
She stood some distance away from him to maintain a safety zone.

drug-free, nuclear-free, smoke-free, traffic-free, etc.
Most of the old town is a traffic-free zone.

northern, southern, etc.
central
earthquake, fault, seismic
climate, climatic
temperate, tropical
the temperate and tropical zones of South America

coastal
dead
an oxygen-depleted dead zone at the bottom of the sea

economic, enterprise, fishing, free-trade, industrial
an industrial zone of factories, warehouses and shipyards

autonomous
pedestrian (BrE)
school (AmE)
time
Vancouver is in the same time zone as Los Angeles.

erogenous
drop, landing
relegation (BrE)
The team finds itself in the relegation zone after a run of poor results.

strike (in baseball)
end (in American football)
comfort
Students are unwilling to step outside their comfort zone.

control, patrol
The rebels control the southern border zone.

create, declare sth, designate sth, establish
The area has been declared a closed military zone.

enforce
Fighter planes are being sent to enforce the UN no-fly zone.

violate
An enemy plane was shot down after it violated the exclusion zone.

cross into, enter
We were crossing into a new time zone.

leave
Aid workers were advised to leave the danger zone.

divide sth into
Europe is divided into economic zones.

in a/the zone, within a/the zone
The plant grows only in the temperate zone.
Companies within enterprise zones are given special help.

into a/the zone
We had accidentally strayed into the war zone.

out of a/the zone
zone between
the neutral zone between the two countries