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

• laundry detergent
• laundry list
• laundry truck
• laundryman
• laundrywoman
• laura
• Lauraceae
• Laurasia
• laureate
• laureateship
• laurel
• Laurel and Hardy
• laurel cherry
• laurel family
• laurel oak
• laurel sumac
• laurel willow
• laurel wreath
• laurel-tree
• laureled
• laurelled
• laurels
• laurelwood
• Laurence Olivier
• Laurence Stephen Lowry