Sentence:  Dialectologists have produced dialect maps showing different usages in different areas. For example, in England, a map could show different terms for "cross-eyed:" "cock-eyed" in Northumberland, Westmoreland and parts of the Midlands, <WSD>"boss-eyed</WSD>" in South-East England and East Anglia, "squint-eyed" in Devon and parts of Somerset, and "cross-eyed" in Cheshire, Derbyshire and the Isle of Man ... 
Meaning of the word marked with <WSD> tags:  Cross-eyed; squinting.