ViagraVi‧ag‧ra /vaɪˈæɡrə/ noun [uncountable] trademark 
a drug that helps men to have an erection
a drug that helps men to have an erection- nasty
- natal
- natch
- nation
- National
- national
- National Airport
- national anthem
- National Archives
- National Basketball Association
- National Cancer Institute
- National Centre for Popular Music
- National Childbirth Trust
- National Collegiate Athletic Association
- National Conference
- national costume
- National Curriculum
- national debt
- national dress
- National Endowment for the Arts
- National Endowment for the Humanities
- National Enquirer, The
- National Exhibition Centre
- National Express
- National Farmers Union