1. A style of theater where the characters generally sing rather than speak their lines.

2. The music characteristic of these plays.

3. The place where one goes to see such performance.

4. A particular web browser.
1. "I am going to see Mozart's opera 'Le Nozze di Figaro.'"

2. "I am an opera singer."

3. "We're going to the opera next week."

4. "I prefer Opera to AOL."
by Talia July 25, 2004
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A browser superior to Internet Explorer and its creators, who favor proprietary "HTML" over the W3C's standards.
Opera is better than Internet Explorer. Actually, snail mail is, too.
by GastonRabbit November 4, 2004
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Fastest browser and lightest one I know of between IE7 and Firefox. People seem to underrate this browser, it's less than 8MB yet manages to hold a bittorent downloader, email client, magic wand features, and endless customization to the interface along with thousands of widgets and themes (skins) you can choose from on their site. Most stuff Firefox has or just added, has been intergrated with Opera for years.
Opera > Firefox > IE7
by Underwater Ruins July 11, 2008
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The fastest wordbrowser/word on wordEarth/word and simplty the wordbest/word wordinternet/word experience.
Using Opera lets me browse porn faster.
by jmm July 4, 2003
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1) Acronym for "Oscillation Project with Emulsion-Racking Apparatus" an experiment at the LGNS facility in Italy, an experiment known for promoting a sensational and clearly incorrect result that the neutrino can travel faster than light.

2) Verb: to screw up in an experimental or research context

3) Noun: an experimental error that should have been caught, but affected results.

4) to pull an OPERA. verb: to make an error when showing results; to engage in definition #3
Don't OPERA that cable!

Wait, this graph wrong, I pulled an OPERA.
by MikeMikeMik February 24, 2012
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Though it only owns about 20% of the global browser market share, it's quite possibly the best browser available. Unlike Internet Explorer, it's secure. Unlike Firefox, it's fast. Unlike Safari, it actually works. It meets W3C Web Standards, and got a higher score than any other browser on the Acid 3 test.
Opera is the browser of choice, by Jesus Christ himself.
by Da Milkman June 3, 2009
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To add dramatic impact to a sentence by singing it like an opera.
Trying to get attention at a bar, Theresa: "Can I have 3 vodka's please". No response. Dawn: "Opera it". Theresa: "Can I have 3 vodka's please" sung at the top of her voice in an opera style = instant attention & service.
by Dawn Calverley September 24, 2007
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