back-up
Secondary support option
Back-up is an alternative spelling of backup, used as a noun or adjective.
A back-up is a copy made in case the original is lost: Make a back-up of your files.
It also means support or a substitute: We need back-up, a back-up plan.
The unhyphenated backup is more common in American English.
Alternative if primary fails
- alternativeAnother available choice
- insuranceContractual risk coverage
- safeguardPrecaution against harm
- bufferProtective intermediate space
contingency · provision · reserve · precaution · failsafe · stopgap · worst-case · redundancy
Facts for analysis
- restoreReturn to earlier state
- cloudAtmospheric water vapor mass
- storageSpace for keeping goods
- archiveStored historical records
server · synchronization · snapshot · recovery · encryption · compression · redundancy · database
Exact replica of original
- replicaFaithful scaled reproduction
- cloneGenetically identical organism
- facsimileExact reproduction of original
- spareHeld in reserve
carbon-copy · photocopy · reproduction · standby · alternate · secondary
Held in reserve
- stockpileAccumulated reserve supply
- cacheConcealed storage spot
- supplyFurnish or stock
- provisionsStockpiled food and supplies
Support or aid given
- helpAssistance given
- aidSupport given freely
- endorsementFormal expression of support
- advocacyPleading for a cause
corroboration · verification · validation · substantiation · confirmation · evidence · documentation · proof
Excessive accumulation causing blockage
- gridlockComplete mutual obstruction
- bottleneckConstriction limiting throughput
- standstillTotal cessation of movement
- jamCooked fruit spread
logjam · queue · tailback · slowdown · delay · pile-up · snarl
Military personnel collectively
- reinforcementsAdditional troops sent in
- cavalryMounted military force
- reservesResources held back
- second-stringSubstitute team members
fallback
Alternative if primary fails
- alternativeAnother available choice
- insuranceContractual risk coverage
- safeguardPrecaution against harm
buffer · contingency · provision · reserve · precaution · failsafe · stopgap · worst-case · redundancy
data
Facts for analysis
archive · server · synchronization · snapshot · recovery · encryption · compression · redundancy · database · offsite
duplicate
Exact replica of original
- replicaFaithful scaled reproduction
- cloneGenetically identical organism
- facsimileExact reproduction of original
spare · carbon-copy · photocopy · reproduction · standby · alternate · secondary
spare
Held in reserve
provisions · surplus · extra · standby
assistance
Support or aid given
- helpAssistance given
- aidSupport given freely
- endorsementFormal expression of support
advocacy · corroboration · verification · validation · substantiation · confirmation · evidence · documentation · proof · testimony
congestion
Excessive accumulation causing blockage
- gridlockComplete mutual obstruction
- bottleneckConstriction limiting throughput
- standstillTotal cessation of movement
jam · logjam · queue · tailback · slowdown · delay · pile-up · snarl
troops
Military personnel collectively
- reinforcementsAdditional troops sent in
- cavalryMounted military force
- reservesResources held back
back-upprimary
Chief in importance
main · original · principal · first-string · starter
back-upobstacle
Something blocking the way
hindrance · impediment · saboteur · opponent · adversary
back-uporiginal
First or inventive
master · source · master copy · source file · live version