Noun

(en noun)

An insect of the order Hemiptera (the "true bugs").

(colloquial) Any insect, arachnid, or other terrestrial arthropod that is a pest.

These flies are a bother. I’ll get some bug spray and kill them.

Various species of marine or freshwater crustaceans; e.g. a Morton Bay bug, mudbug.

A problem that needs fixing, especially in computing.

The software bug led the computer to calculate 2 plus 2 as 5.

* {{quote-book, year= 1878

, year_published= 1989 , quotee= (Thomas Edison) , author= Thomas P. Hughes , quoted_in= American Genesis: A History of the American Genius for Invention , url= , title=Edison to Puskas, 13 November 1878, Edison papers , type= cited by , chapter= , section= , isbn= 0-14-009741-4 , edition= , publisher= Penguin Books , location= Edison National Laboratory, U.S. National Park Service, West Orange, N.J. , editor= , volume= , page= 75 , passage= I have the right principle and am on the right track, but time, hard work and some good luck are necessary too. It has been just so in all of my inventions. The first step is an intuition, and comes with a burst, then difficulties arise -- this thing gives out and [it is] then that "Bugs " -- as such little faults and difficulties are called -- show themselves and months of intense watching, study and labor are requisite before commercial success or failure is certainly reached. }}

A contagious illness; a bacterium or virus causing it

He’s got the flu bug .

An enthusiasm for something; an obsession

I think he’s a gold bug , he has over 10,000 ounces in storage.

to catch the skiing bug

An electronic intercept device

We installed a bug in her telephone

A small and and usually invisible file (traditionally a single-pixel image) on a World Wide Web page, primarily used to track users.

He suspected the image was a web bug used for determining who was visiting the site.

(broadcasting) A small, usually transparent or translucent image placed in a corner of a television program to indicate what network or cable channel is televising it

Channel 4's bug distracted Jim from his favorite show

(aviation) A manually positioned marker in flight instruments

A semi-automated telegraph key

* 1938 , Paul Gallico, Farewell to Sport , page 257:

At this point your telegraph operator, sitting at your right, goes "Ticky-tick-tickety-de-tick-tick," with his bug , as he calls his transmitter, and looks at you expectantly.

* 1942 , Arthur Reinhold Nilson, Radio Code Manual , page 134:

As far as the dashes are concerned, the bug is the same in operation as any regular key would be if it were turned up on edge instead of sitting flat on the desk.

* 1986 , E. L. Doctorow, World's Fair , page 282:

I was a very good radio operator. I bought my own bug . That's what the telegraph key in its modern form was called. It was semiautomatic.

(obsolete) A bugbear; anything that terrifies.

* Shakespeare

Sir, spare your threats: / The bug which you would fright me with I seek.

HIV.

(poker) A limited form of wild card in some variants of poker.

Noun

(en noun)

An opening in anything made by breaking or parting.

An opening allowing passage or entrance.

An opening that implies a breach or defect.

A vacant space or time.

A hiatus.

* {{quote-magazine, date=2013-08-03, volume=408, issue=8847, magazine=(The Economist)

, title= The machine of a new soul , passage=The yawning gap in neuroscientists’ understanding of their topic is in the intermediate scale of the brain’s anatomy. Science has a passable knowledge of how individual nerve cells, known as neurons, work. It also knows which visible lobes and ganglia of the brain do what. But how the neurons are organised in these lobes and ganglia remains obscure. Yet this is the level of organisation that does the actual thinking—and is, presumably, the seat of consciousness.}}

A mountain or hill pass.

(label) A sheltered area of coast between two cliffs (mostly restricted to place names).

(label) The regions between the outfielders.

The shortfall between the amount the medical insurer will pay to the service provider and the scheduled fee for the item.

* 2008 , Eileen Willis, Louise Reynolds, Helen Keleher, Understanding the Australian Health Care System , page 5,

Under bulk billing the patient does not pay a gap , and the medical practitioner receives 85% of the scheduled fee.

* {{quote-news, year=2012, date=May 13, author=Andrew Benson, work=BBC Sport

, title= Williams's Pastor Maldonado takes landmark Spanish Grand Prix win , passage=That left Maldonado with a 6.2-second lead. Alonso closed in throughout their third stints, getting the gap down to 4.2secs before Maldonado stopped for the final time on lap 41.}}

* {{quote-book, year=1995, author=Robert E. Knoll, chapter=A University on the Defensive 1920-1927

, title= Prairie University: A History of the University of Nebraska, page=70 , passage=When Charles Bessey suddenly died in 1916 at age seventy, he left a gap that was impossible to fill; and though his protégé. R. J. Pool, was a man of intelligence and character, he did not have Bessey’s authority.}}

(label) (usually written as "the gap") The disparity between the indigenous and non-indigenous communities with regard to life expectancy, education, health, etc.