The phrase "adjoining playground" is correct and usable in written English.
It can be used to describe a playground that is next to or connected to another area, such as a school or park.
Example: "The children enjoyed playing in the adjoining playground after their classes ended."
Alternatives: "neighboring playground" or "adjacent playground".
A family visited a small, adjoining playground and its two ponies.
Children idled in the adjoining playground, where someone had been throwing olive-green water balloons shaped like hand grenades.
Construction of the sewage storage tank would close the pool, and possibly an adjoining playground, basketball court and skate park, for years; officials have not said whether they would come up with a temporary alternative.
It was the rickety jingle of an ice cream truck parked next to the Urban Meadow community garden in Brooklyn, which adjoins a playground and serves as the festival site.
That is easily found at Vondelpark, in particular at Het Groot Melkhuis, a cafe adjoining a packed playground.
In fact, the pub proved a big hit all round for our son, who darted about the playground in the adjoining field while we sat in the pub garden.
Feed the ducks, ride the swan boats, see the beloved Make Way for Ducklings statues (on the adjoining Boston Public Garden), enjoy the playgrounds and take a ride on the carousel near Frog Pond for $3.
He noted that a playground was opened in the park adjoining the plant in the late 1960's.
Minutes from a Tuam Council meeting call for "due care and sensitivity" when building the playground because of the "children's burial ground and adjoining burial ground," Corless said.
In Sertoma Park, playground equipment adjoins elaborate plantings and stone sculptures of the Japanese Garden.
Yes, they could have built it on a bit of playground, squeezing it between mature plane trees and the windows of adjoining properties, but this would have meant laying replacement play areas, with artificial sports pitches and metal fences, at the feet of the church.
