1. CN Tower - Noun
2. CN Tower - Proper noun
a tower in Toronto; 1815 feet tall for broadcasting widely
Source: WordNetIn 1976, the completed CN Tower in Toronto became the world's tallest free-standing structure on land, an honor it held until 2007. Source: Internet
Construction The CN Tower as seen from its base Construction on the CN Tower began on February 6, 1973, with massive excavations at the tower base for the foundation. Source: Internet
February main * February 6 Toronto: Construction on the CN Tower begins. Source: Internet
Like the CN Tower, none of these taller structures are commonly considered buildings. Source: Internet
Since the name CN Tower became common in daily usage, the abbreviation was eventually expanded to Canadian National Tower or Canada's National Tower. Source: Internet
Structures such as the CN Tower, the Ostankino Tower and the Oriental Pearl Tower are excluded from these categories because they are not "habitable buildings", which are defined as frame structures made with floors and walls throughout. Source: Internet