Scottish (Adjective) — Of or relating to or characteristic of Scotland or its people or culture or its English dialect or Gaelic language. ex. "'Scottish' tends to be the more formal term as in 'The Scottish Symphony' or 'Scottish authors' or 'Scottish mountains'" ex. "'Scotch' is in disfavour with Scottish people and is used primarily outside Scotland except in such frozen phrases as 'Scotch broth' or 'Scotch whiskey' or 'Scotch plaid'"
Scottish (Noun) — The dialect of English used in Scotland.
Scottish (Noun) — Eurasian maple tree with pale grey bark that peels in flakes like that of a sycamore tree; leaves with five ovate lobes yellow in autumn.