1. Introduces a conditional clause
   "I will go to university if I can afford it" 
2. Despite being
   "he's nice, if rather patronizing" 
3. Every time that
   "if I call you are always engaged"
   - whenever, when

Encyclopedia: If

• noisiness
• noisome
• noisomeness
• noisy
• nol.pros.
• nolens volens
• noli-me-tangere
• Nolina
• Nolina microcarpa
• noll
• nolle pros
• nolle prosequi
• nolo contendere
• nom de guerre
• nom de plume
• nom.
• noma
• nomad
• nomadic
• nomadism
• nombril
• Nome
• nomenclator
• nomenclatural
• nomenclature