Sibling terms:
- Constructive and respectful engagement (Principle 1, Article 50 letter)
- Securing a comprehensive agreement (Principle 3, Article 50 letter)
- Minimising disruption (Principle 4, Article 50 letter)
- Consideration for the relationship with the Republic of Ireland and interests of Northern Ireland (Principle 5, Article 50 letter)
- Negotiating the biggest challenges first (Principle 6, Article 50 letter)
- Protecting shared European values (Principle 7, Article 50 letter)