| Subject | English | Estonian |
| R&D., energ.ind., nucl.phys. | controlled nuclear fusion | juhitav termotuumasüntees |
| R&D., energ.ind., nucl.phys. | controlled thermonuclear fusion | juhitav termotuumasüntees |
| gen. | European Joint Undertaking for ITER and the Development of Fusion Energy | ühisettevõte Fusion for Energy |
| nat.sc., el. | European Joint Undertaking for ITER and the Development of Fusion Energy | ITERi ja tuumasünteesienergeetika arendamise Euroopa ühisettevõte |
| gen. | European Joint Undertaking for ITER and the Development of Fusion Energy | Fusion for Energy |
| comp., MS | Fast Fusion | Kiire fusion (One of the music genres that appears under Genre classification in Windows Media Player library. Based on ID3 standard tagging format for MP3 audio files. Winamp genre ID 84) |
| gen. | fusion and plasma physics | tuumasünteesi- ja plasmafüüsika |
| earth.sc. | fusion energy | tuumasünteesienergia |
| gen. | Fusion for Energy | ühisettevõte Fusion for Energy |
| nat.sc., el. | Fusion for Energy | ITERi ja tuumasünteesienergeetika arendamise Euroopa ühisettevõte |
| gen. | Fusion for Energy | Fusion for Energy |
| energ.ind., nucl.phys. | fusion plasma | tuumasünteesiplasma |
| earth.sc. | fusion power | tuumasünteesienergia |
| nucl.phys. | fusion power plant | termotuumaelektrijaam |
| med., life.sc. | fusion protein | fusioonproteiin |
| environ. | nuclear fusion Combination of two light nuclei to form a heavier nucleus with release of some binding energy | tuumade liitumine |
| econ. | nuclear fusion | tuumasüntees |
| R&D., nucl.phys. | nuclear fusion energy | tuumasünteesienergia |