Insight is:

• the act or result of apprehending the inner nature of things or of seeing intuitively;
• Power of acute observation and deduction; penetration; discernment; perception;
• introspection;
• A kind of problem or problem solving behaviour distinguished from other kinds by insight phenomenology or psychological theories of insight

The term Insight is used by:

• Insight (magazine);
• Insight Technology is a company that produces flashlights for mounting on weapons;
• A graphical user interface to GDB, the GNU Debugger written in Tcl/Tk by people working at Red Hat, Inc .
• A cable television company located in the U.S. Midwest
  
  
  
  that also offers high-speed Internet access and digital telephone service. It is the ninth largest provider in the United States.
• The Honda Insight, Honda's first mass production hybrid vehicle.
• Insight (public radio program)
• A book by Bernard Lonergan subtitled "A Study of Human Understanding" and published in 1957.
• Insight Studios is a web design company based in Guelph, Ontario, Canada.
• Insight on the Scriptures is a bible encyclopedia published by Jehovah's Witnesses.
• In Buddhism, the Pali word for "insight" is "vipassana".

• Insight Guides, a travel and map guide series based in the UK.