| Subject | English | Arabic |
| genet. | chromosomal duplication | نسْخ كروموسومى |
| comp., MS | disk duplication | نسخ متماثل للقرص (The process of using third-party hardware or software to copy a full master Windows installation onto the hard disks of multiple destination computers. The master computer and destination computers must have compatible hardware abstraction layers (HALs). The destination computer can be delivered directly to customers, or it might require additional processing on the factory production line) |
| genet. | insertion duplication | النسخ بالإيلاج |
| genet. | safety duplication | النسخ لأغراض السلامة |
| biotechn. | tandem duplication | التكرار المترادف |
| biotechn. | tandem duplication | التكرار الترادفي التسلسل |
| genet. | tandem duplication | ازدواج مترادف |
| genet. | tandem duplication | متكرر مترادف |
| econ. | unnecessary duplication | تكرار غير لازم |
| econ. | unnecessary duplication | استعمال مزدوج |