Scottish

Từ điển Oxford Advanced Learner 8th

Scot·tish [Scottish] BrE [ˈskɒtɪʃ] NAmE [ˈskɑːtɪʃ] adjective
of or connected with Scotland or its people
•the Scottish Highlands
•Scottish dancing

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describing things from Scotland
The adjective Scottish is the most general word used to describe the people and things of Scotland, while Scots is only used to describe its people, its law and especially its language: ▪ Scottish dancing ◇ ▪ the Scottish parliament ◇ ▪ a well-known Scots poet ◇ ▪ a slight Scots accent.
The adjective Scotch is now mainly used in fixed expressions such as ▪ Scotch whisky and ▪ Scotch broth and sounds old-fashioned or insulting if it is used in any other way.
The noun Scotch means whisky, and the noun Scots refers to a language spoken in Scotland, closely related to English. A person who comes from Scotland is a Scot: ▪ The Scots won their match against England.
note at ↑British