If - Definition

if or IF may be:

• The logical conditional word; see also Control flow.
• If...., a 1968 British film
• If—, poem by Rudyard Kipling
• If (magazine), also known as Worlds of If, a science fiction magazine published from the 1950s until 1974, when it merged with Galaxy science fiction.
• If..., a political comic strip which appears in the UK broadsheet newspaper The Guardian.
• If... is a BBC television series of drama-documentaries
• If (song), by the American pop group Bread
• Impact Factor
• Interactive fiction (IF, also known as text adventures)
• Intermediate frequency
• Intermediate filament