Adjective southwestern has 2 senses
  1. southwest, southwestern, southwesterly - situated in or oriented toward the southwest
    Antonym: north (indirect, via south)
  2. southwestern - of a region of the United States generally including New Mexico; Arizona; Texas; California; and sometimes Nevada; Utah; Colorado
    Antonym:
    eastern (indirect, via western)
,Noun southwestern has 1 sense
  1. Southwestern, West Saxon - a dialect of Middle English
    --1 is a kind of Middle English
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