Arable land defined as land capable of tillage, determined by fitness for cultivation rather than current use. Definition of arable focuses on land's capacity to be ploughed and fit for tillage and crop production, stressing potential suitability rather than current cultivation. Case law confirms that land may be properly described as arable even if not actively tilled or if it is transitioning toward another character such as ancient pasture; classification turns on capability for tillage, not present use.