最さい西せい端たん

noun, noun which may take the genitive case particle 'no'

westernmost point; westernmost tip; westernmost extremity

Used for the farthest west location of a landmass, region, or defined area. Often appears in geographic descriptions.

• 日本にほんの最さい西せい端たんは与よ那な国ぐに島じまです。