No, Aberdeen shire is not considered to be part of the Scottish Highlands.
Northwest highlands
Scottish Highlands and Islands, particularly West Highlands
The Scottish Highlands is a region in Scotland that covers most of the northern part of the country, rather than a specific city or town. It is known for its stunning landscapes, rugged terrain, and historic sites.
The mountainous area of Scotland is known as 'The Highlands'. The Highlands include the Cairngorm and Grampian ranges. Ben Nevis, the highest mountain in the UK is in the Highlands, as is Loch Ness. The highest village in the UK, Tomintoul, is also in the Highlands.
The Highlands are in the northern half of Scotland.
The Highlands of Scotland are a part of the Scottish nation, so therefore belong to the Scottish state and it's people. However, there are many large estates and game-reserves in the Highlands that are private land, although some of these allow walkers the right to cross through them.
Sporrans originated from Scotland and are a traditional component of Highland dress. They started as a practical item for storing small belongings like money and keys, and have since become a prominent feature of Scottish formal attire.
The Highlands geographically, start at Stonehaven in Aberdeenshire.
It was in the Scottish Highlands.
Tomintoul
Mostly granite