the dialect of English used in Scotland
"The tourists were fascinated by the thick scottish accent when the guide spoke about the Highlands."
the Scottish; the people of Scotland.
"The scottish gathered in Edinburgh to celebrate their cultural heritage."
In plain English: A Scottish is someone who was born in Scotland and follows its culture.
"The Scottish in me missed the rolling hills and crisp air back home."
of or relating to or characteristic of Scotland or its people or culture or its English dialect or Gaelic language
"Scots Gaelic"
"the Scots community in New York"
"`Scottish' tends to be the more formal term as in `The Scottish Symphony' or `Scottish authors' or `Scottish mountains'"
"`Scotch' is in disfavor with Scottish people and is used primarily outside Scotland except in such frozen phrases as `Scotch broth' or `Scotch whiskey' or `Scotch plaid'"
Of a person, native to, born in or whose ancestors originally came from Scotland.
"The Scottish team celebrated their victory with great pride after defeating the English side."
In plain English: Scottish describes anything that comes from Scotland, including its people, culture, and language.
"The scottish haggis was delicious at our dinner party."
The word Scottish comes from Old English, where it originally meant "pertaining to the Scots." It entered Middle English as Scottich before becoming the modern adjective we use today for anything related to Scotland or its people.