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

• goats' milk
• goatsbeard
• goatsfoot
• goatskin
• goatsucker
• gob
• gobang
• gobbet
• gobble
• gobble up
• gobbledegook
• gobbledygook
• gobbler
• Gobi
• Gobi Desert
• Gobiesocidae
• Gobiesox
• Gobiesox strumosus
• Gobiidae
• Gobio
• Gobio gobio
• goblet
• goblet cell
• goblet-shaped
• goblin