speedway

As a noun speedway

is (uncountable) a form of motorcycle racing on dirt tracks using motorcycles with neither brakes nor gears.

As an adjective false is

(label) one of two states of a boolean variable; logic.

As a noun speedway

is (uncountable) a form of motorcycle racing on dirt tracks using motorcycles with neither brakes nor gears.

As an adjective undefined is

lacking a definition or value.

As nouns the difference between motocross and speedway

is that motocross is a form of off-road motorbike racing while speedway is a form of motorcycle racing on dirt tracks using motorcycles with neither brakes nor gears.

As nouns the difference between speedway and freeway

is that speedway is a form of motorcycle racing on dirt tracks using motorcycles with neither brakes nor gears while freeway is a road designed for safe, high-speed operation of motor vehicles through the elimination of at-grade intersections, usually divided and having at least two lanes in each direction; a dual carriageway with no at-grade crossings, a motorway.

As nouns the difference between byways and speedway

is that byways is while speedway is (uncountable) a form of motorcycle racing on dirt tracks using motorcycles with neither brakes nor gears.

As nouns the difference between taxonomy and speedway

is that taxonomy is the science or the technique used to make a classification while speedway is (uncountable) a form of motorcycle racing on dirt tracks using motorcycles with neither brakes nor gears.

As nouns the difference between raceway and speedway

is that raceway is a place where races are held. A racetrack while speedway is a form of motorcycle racing on dirt tracks using motorcycles with neither brakes nor gears.

As nouns the difference between speedway and superspeedway

is that speedway is a form of motorcycle racing on dirt tracks using motorcycles with neither brakes nor gears while superspeedway is a motor speedway at least two miles in length.