| (inanimate noun) declension |  
 
 | 
indefinite | 
singular | 
plural | 
 
|  absolutive  | 
 helikoptero  | 
 helikopteroa  | 
 helikopteroak   | 
 
|  ergative  | 
 helikopterok  | 
 helikopteroak  | 
 helikopteroek  | 
 
|  dative  | 
 helikopterori  | 
 helikopteroari  | 
 helikopteroei  | 
 
| 
genitive  | 
 helikopteroren  | 
 helikopteroaren  | 
 helikopteroen | 
 
|  comitative  | 
 helikopterorekin  | 
 helikopteroarekin  | 
 helikopteroekin | 
 
|  causative  | 
 helikopterorentzat  | 
 helikopteroarentzat  | 
 helikopteroentzat | 
 
| 
benefactive  | 
 helikopterorengatik  | 
 helikopteroarengatik  | 
 helikopteroengatik | 
 
|  instrumental  | 
 helikopteroz  | 
 helikopteroaz  | 
 helikopteroez | 
 
| 
inessive  | 
 helikopterotan  | 
 helikopteroan  | 
 helikopteroetan | 
 
|  locative  | 
 helikopterotako  | 
 helikopteroko  | 
 helikopteroetako | 
 
| 
allative  | 
 helikopterotara  | 
 helikopterora  | 
 helikopteroetara | 
 
| 
terminative  | 
 helikopterotaraino  | 
 helikopteroraino  | 
 helikopteroetaraino | 
 
|  directive  | 
 helikopterotarantz  | 
 helikopterorantz  | 
 helikopteroetarantz | 
 
|  destinative  | 
 helikopterotarako  | 
 helikopterorako  | 
 helikopteroetarako | 
 
|  ablative  | 
 helikopterotatik  | 
 helikopterotik  | 
 helikopteroetatik | 
 
|  partitive  | 
 helikopterorik  | 
  -   | 
  - 
 | 
 
|  prolative  | 
 helikopterotzat  | 
  -   | 
  - 
 | 
 
  | 
Esperanto
Noun
helikoptero (accusative singular helikopteron, plural helikopteroj, accusative plural helikopterojn)
-  helicopter
 
Derived terms
Ido
Noun
helikoptero (plural helikopteri)
-  helicopter