This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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n. A narrow, often elevated walkway, as on the sides of a bridge or in the flies above a theater stage.

n. an elevated enclosed passage providing access fore and aft from the bridge of a merchant vessel

n. any similar elevated walkway

n. A narrow elevated stage on which models parade; a runway

n. the business of making clothes for fashion shows.

n. a narrow walkway projecting from a stage into the seating area of a theater; it is used, e. g. by models displaying clothes on it at a fashion show. Called also runway.

n. a narrow walkway high in the air to allow workers access to parts of a structure otherwise difficult to reach. Catwalks are located, e.g. above a stage in a theater, between parts of a building, along the side of a bridge, on the outside of a railroad car, on the outside of a large storage tank, etc.

n. narrow platform extending out into an auditorium

n. narrow pathway high in the air (as above a stage or between parts of a building or along a bridge)

"The designer eschewed fashion traditions, never showing her clothes in catwalk shows and usually shunning the limelight, but was named couture designer of the year at the 1990 British Fashion Awards."

platform    paseo    walkway    walk   

runway   

walkway    banister    handrail    balustrade    stairway