Gmail is email that's intuitive, efficient, and useful. 15 GB of storage, less spam, and mobile access. Book flight tickets with Singapore Airlines and enjoy comfort and luxury on-board the world's most awarded airline. Plan your holiday with our latest travel deals. The CUC () is the national association of Unitarian and Universalist societies in Canada. The CUC is an organization of Unitarian and Unitarian Universalist member congregations and individual members acting to enhance, nurture, and promote Unitarian and Unitarian Universalist religion in Canada.