from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A true bug.
  • n. An insect or similar organism, such as a centipede or an earwig. See Regional Note at lightning bug.
  • n. A disease-producing microorganism: a flu bug.
  • n. The illness or disease so produced: "stomach flu, a cold, or just some bug going around” ( David Smollar).
  • n. A defect or difficulty, as in a system or design.
  • n. Computer Science A defect in the code or routine of a program.
  • n. An enthusiasm or obsession: got bitten by the writing bug.
  • n. An enthusiast or devotee; a buff: a model train bug.
  • n. An electronic listening device, such as a hidden microphone or wiretap, used in surveillance: planted a bug in the suspect's room.
  • intransitive v. To grow large; bulge: My eyes bugged when I saw the mess.
  • transitive v. To annoy; pester.
  • transitive v. To prey on; worry: a memory that bugged me for years.
  • transitive v. To equip (a room or telephone circuit, for example) with a concealed electronic listening device.
  • transitive v. To make (the eyes) bulge or grow large.
  • bug off Slang To leave someone alone; go away.
  • bug out Slang To leave or quit, usually in a hurry.
  • bug out Slang To avoid a responsibility or duty. Often used with on or of: bugged out on his partners at the first sign of trouble.
  • idiom put a bug in (someone's) ear Informal To impart useful information to (another) in a subtle, discreet way.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. An insect of the order Hemiptera (the "true bugs").
  • n. Any insect, arachnid, or other terrestrial arthropod that is a pest.
  • n. Various species of marine crustaceans; e.g. a Morton Bay bug.
  • n. A problem that needs fixing, especially in computing.
  • n. A contagious illness; a bacterium or virus causing it
  • n. An enthusiasm for something; an obsession
  • n. An electronic intercept device
  • n. A small and and usually invisible file (traditionally a single-pixel image) on a World Wide Web page, primarily used to track users.
  • n. 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
  • n. A manually positioned marker in flight instruments
  • n. A semi-automated telegraph key
  • n. (LGBT) The HIV.
  • v. To annoy.
  • v. To install an electronic listening device or devices in.

from the GNU version of the Collaborative International Dictionary of English

  • n. A bugbear; anything which terrifies.
  • n. A general name applied to various insects belonging to the Hemiptera
  • n. An insect of the genus Cimex, especially the bedbug (Cimex lectularius). See Bedbug.
  • n. One of various species of Coleoptera.
  • n. One of certain kinds of Crustacea
  • n. An error in the coding of a computer program, especially one causing the program to malfunction or fail. See, for example, year 2000 bug.
  • n. Any unexpected defect or flaw, such as in a machine or a plan.
  • n. A hidden electronic listening device, used to hear or record conversations surreptitiously.
  • n. An infectious microorganism; a germ{4}.
  • n. An undiagnosed illness, usually mild, believed to be caused by an infectious organism.
  • n. An enthusiast; -- used mostly in combination, .
  • transitive v. to annoy; to bother or pester.

from The Century Dictionary and Cyclopedia

  • To hunt for bugs; collect or destroy insects: chiefly in the present participle: as, to go bugging.
  • To bend.
  • Big; threatening.
  • Proud; self-important; pompous; conceited.
  • n. A hobgoblin; a specter; anything terrifying; a bugbear.
  • n. A term loosely applied to many kinds of insects, commonly with certain distinctive additions, as May-bug, lady-bug, land-bugs (Geocorisæ), water-bugs (Hydrocorisæ), etc.
  • n. Especially The Cimex lectularius, the bedbug or house-bug, or any member of this genus or of the family Cimicidæ.
  • n. plural In entomology, the Hemiptera, and especially the heteropterous division of that order.
  • n. An entomostracous crustacean of cursorial habit or bug-like aspect, as an isopod.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • v. tap a telephone or telegraph wire to get information
  • n. general term for any insect or similar creeping or crawling invertebrate
  • n. a fault or defect in a computer program, system, or machine
  • v. annoy persistently
  • n. a small hidden microphone; for listening secretly
  • n. insects with sucking mouthparts and forewings thickened and leathery at the base; usually show incomplete metamorphosis
  • n. a minute life form (especially a disease-causing bacterium); the term is not in technical use


from The American Heritage® Dictionary of the English Language, 4th Edition

Origin unknown.

from Wiktionary, Creative Commons Attribution/Share-Alike License

First attested in this form around 1620 (referring to a bedbug), from earlier bugge ("beetle"), a conflation of two words:


  • 该版本的主要变化包括:针对 Internet Explorer 7 的 bug 修正;改进了 crypt32,包含新的导出向导;更好的支持无窗 Richedit;对 "打印" 对话框进行了改善;修复了 Windows 平台上的回归测试问题及其他许多 bug。


  • The term "bug," while having a specific taxonomic meaning, is also used as an umbrella term to include land-arthropods in general, including arachnids, like scorpions and spiders.

    Daniella Martin: What Do Bugs Taste Like, Anyway?

  • I agree with Dave Winer's rant against what he calls bug graphics, and which I call kipple.

    Archive 2006-06-01

  • The term "bogeyman" seems to have come from the Welsh "bwg" spirit and the word "bug" was applied to insects because of the belief that insects were souls in search of rebirth.

    WalesOnline - Home

  • While he runs, Zeizel keeps what he calls a bug-out bag within reach.

    NYT > Home Page

  • I was ready to comment on the previous post, and say that in the spirit of the season, a Trini would tell you "the boy so cute he get malju" (derived from the French mals yeux), but that kind of bug is awful.

    Tricks are TrickyThings

  • Depending on what bug is in your gut, and depending on if it had been already partially treated with antibiotics by the former carrier, your antibiotic treatment may or may not help you.

    Treating Food/Water Poisoning in Mexico, or Any Other Place

  • If first few practices of spring ball were any indication, it looks like the injury bug is sticking around Nashville a while longer, the last thing this program needed.

    Around the Southeastern Conference

  • But first, I get as much information out as I possibly can, while the creativity bug is still munching.

    A New Way to Look At Writing Blog Posts | Write to Done

  • And I found out LOTS of nasty chemicals are used to keep grain bug-free, mold-free, and ready for processing into the myriad wheat products we consume.

    duh pookie


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  • hi there. i've been experiencing problems on Wordie recently... i am being logged out randomly - was I given a ban or something? :)

    Anyway... I log in, find a word i want to add to my list, and... dang! i'm logged out. Any help anyone?!

    August 7, 2009

  • Great airport code!

    October 29, 2008

  • Benguela Airport or Gen. V. Deslandes Airport (Angola).

    October 29, 2008

  • bug(s)


    January 24, 2008

  • Wait--is that really you? ;->

    November 20, 2007

  • I seem to have missed all the excitement. I'm fine with all the comments that were made in my name. Now where to add bug...?

    November 20, 2007

  • Sadly, I was no jennarenn at all. :-(

    November 19, 2007

  • Interesting how all but j. were prempted. Jennarenn rules! ;oD

    November 19, 2007

  • I'm the jennarenn who posted the second comment on this page. Thanks John!

    November 19, 2007

  • Full disclosure: I, sionnach, am the jennarenn known as david.

    November 19, 2007

  • Well, you're safe if you couldn't say anything at all (which is the problem I had)! ;-) Thanks, John, for fixing things so quickly.

    November 19, 2007

  • Sadly, or opportunely, everyone now has plausible deniability for last night and this morning. There's no way to figure out who actually said what on the screwed up comments.

    Though I can set things straight comment by comment, directly in the db, if anyone wants me to. Feel free to email me ( if you'd like me to do that. Include a link to the misattributed comment.

    Jennarenn, so sorry we all became you for a brief period :-) Please do let me know if you want any comments that weren't yours stricken from your record.

    November 19, 2007

  • Will we ever know who these jennarenns are, or is that information gone forever? (It seems from the comments that some of these are misattributed.)

    This seems a good moment to deny that anything indecorous I might appear to have said recently was really said by me.

    November 19, 2007

  • This is a test comment by sionnach.

    November 19, 2007

  • Arrgh, so sorry about the screwed up commenting. I redid the template for words, and left the caching for it in a screwy state, which caused all sorts of issue. I just turned all caching off for word pages, which should fix the functionality, though it might make things a little slower. Working on fixing it so I can turn caching back on.

    November 19, 2007

  • *deleted*

    November 19, 2007

  • test

    November 19, 2007

  • Hi John: The comment function has gone totally crazy - some comments I have made are showing up attributed to others; some words don't allow me to comment, but ask me to log in. it seems i'm not the only one experiencing these difficulties.


    November 19, 2007

  • Hey John,

    I saw on the main page that jennarenn commented on this word, saying she was unable to comment on certain words but could on others. I noticed this also--for example, neither jennarenn nor I can comment on the "bugs" page (it tells me to register or login) but we can on this one.

    Only, jennarenn's comment is not visible to me on this page, and nor is anyone else's.

    Noticed this with some other comments that were on the front page, including yours--went to respond but that page asked me to register or login.

    November 19, 2007

  • Hey John,

    I hope you're having a good day. I'm only signed into certain pages today. For example, I can't comment on bugs, but I can leave a comment on this page.

    :) Jen

    November 18, 2007