Skip to definition.
Get the FREE one-click dictionary software for Windows or the iPhone/iPad and Android apps

Conjunction: if  if
  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, and only if