Here are a few terms I've seen or heard:
- Aberration
- Abend
- Anomaly
- Blemish
- Blooper
- Blunder
- Boner
- Botch
- Bug
- Complaint
- Defect
- Deficiency
- Deviation
- Err
- Erratum
- Erroneousness
- Error
- Failing
- Failure
- Fault
- Flaw
- Foul-up
- Fumble
- Glitch
- Imperfection
- Inaccuracy
- Inadequacy
- Incident
- Incorrectness
- Irregularity
- Issue
- Lapse
- Loophole
- Miscalculation
- Misconception
- Miscue
- Misplay
- Misstep
- Mistake
- Mixup
- Noncompliance
- Oops
- Oversight
- Problem
- Shortcoming
- Slip
- Slip-up
- Snafu
- Stumble
- Tripup
- Typo
- Variation
- Weakness
- Wrongdoing
9/7/2010: Chad Patrick on SQAForums.com jokingly suggests one more term:
- Feature
2/27/2011: Added a few terms from Gerald M. Weinberg's "Why Software Gets In Trouble".
6/30/2011: Added "Foul-up" after I saw it used in the Wall Street Journal about some errors in Southwest Airlines systems.
6/30/2011: Added "Foul-up" after I saw it used in the Wall Street Journal about some errors in Southwest Airlines systems.