Default

default [ di fáwlt ]   noun  (plural defaults)

Definition:  
1. preset option: an option that will automatically be selected by a computer if the user does not choose one
2. failure to do something: a failure to meet an obligation, especially a financial one
3. law nonappearance in court: a failure to make a summoned court appearance
4. sports nonparticipation in competition: a failure to appear for or complete a competition

intransitive verb  (3rd person present singular defaults, present participle defaulting, past and past participle defaulted)

Definition: 
1. FAIL to pay debt: to fail to pay a debt or other financial obligation
2. LAW fail to appear in court: to fail to make an appearance in court although summoned to do so
3. SPORTS fail to compete: to fail to appear for a match or contest
4. COMPUT use preset option: to use a device, command, or file when no other is specified
[13th century. < Old French defaute, past participle of defaillir 'fail' < faillir (see fail)]

by default 
1. having come about because some other thing, often something expected, did not happen 
2. having come about because somebody failed to appear as expected 
3. according to a computer's preset configuration

in default of something or somebody because of a lack of something or the absence of somebody (formal) 

Encarta® World English Dictionary [World English Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.