| Subject | English | Estonian |
| comp., MS | accounts payable three-way invoice matching | ostureskontro arvete kolmel viisil võrdlemine (A practice of matching vendor invoice prices and product quantities to purchase orders and product receipts) |
| math. | Bock's three component model | Bocki kolme komponendi mudel |
| math. | cubic designs with three associate classes | kolme kaasklassiga kuupplaanid |
| IT | excess-three-code | kood liiaga kolm (teat. kood arvude esitamiseks) |
| polit. | pre-established group of three Member States | kolmest liikmesriigist koosnev eelnevalt kindlaks määratud rühm |
| polit. | pre-established group of three Member States | eesistujariikide kolmik |
| law, immigr. | residence for less than three months | viibimine kuni kolm kuud |
| law, immigr. | residence for less than three months | viibimine kuni 90 päeva |
| law, immigr. | residence in excess of three months | üle kolmekuuline riigis viibimine |
| law, immigr. | residence in excess of three months | üle kolmekuuline riigis elamine |
| law, immigr. | residence in excess of three months | elamine riigis kauem kui kolm kuud |
| polit. | rules governing travel by committee delegations outside the three places of work of the European Parliament | eeskiri, mis käsitleb parlamendikomisjonide delegatsioonide lähetusi väljapoole Euroopa Parlamendi kolme töökohta |
| environ., agric. | the Three Rs | asendamise, vähendamise ja täiustamise põhimõtted |
| IT | three-address | kolmeaadressiline (käsk, arvuti vm.) |
| commer. | three-cornered trade | kolmnurkkaubandus |
| math. | three-dimensional lattice | kolmemõõtmeline võre |
| transp., tech., law | three-dimensional reference system | kolmemõõtmeline teljestik |
| IT | three-excess-code | kood liiaga kolm (teat. kood arvude esitamiseks) |
| comp., MS | three-factor authentication | kolmekordne autentimine (An authentication method that requires three authentication methods, which may include something the user provides, such as certificates; something the user knows, such as user names, passwords, or pass phrases; physical attributes, such as a thumbprint; and personal attributes, such as a personal signature) |
| chem. | three-neck flask | kolmkaelkolb |
| math. | three-point assay | kolmepunktikatse |
| math. | three-point assay | kolmepunktiproov |
| mech.eng. | three point linkage | kolmepunktiline rippseadis |
| polit. | three-Presidency team | kolmest liikmesriigist koosnev eelnevalt kindlaks määratud rühm |
| polit. | three-Presidency team | eesistujariikide kolmik |
| math. | three-series theorem | Kolmogorovi kolme rea teoreem |
| fish.farm. | three-spine stickleback | ogalik (Gasterosteus aculeatus, Gasterosteus aculeatus aculeatus) |
| fish.farm. | three-spined stickleback | ogalik (Gasterosteus aculeatus, Gasterosteus aculeatus aculeatus) |
| math. | three-stage least squares | kolmeastmeline vähimruutude protseduur |
| gen. | three-star flag officer | viitseadmiral |
| gen. | three-star flag officer | kindralleitnant |
| ornit. | three-toed woodpecker | kolmvarvas-rähn (Picoides tridactylus) |
| ornit. | three-toed woodpecker | laanerähn (Picoides tridactylus) |
| mech.eng. | three-way cock | kolmekäigukraan |
| comp., MS | three-way handshake | kolmepoolne kätlus (The method for initializing a Transmission Control Protocol (TCP) session between two hosts on an Internet Protocol (IP) network. The three-way handshake synchronizes the sequence number and acknowledgment numbers of the two hosts establishing a connection, exchanges TCP window sizes, and exchanges other TCP options, such as the maximum segment size) |
| comp., MS | three-way matching policy | kolmesuunaline vastavusse viimise poliitika (A matching policy that requires one or more vendor invoice prices to match with one or more purchase order prices and that requires one or more vendor invoice quantities to match with one or more product receipt quantities) |
| mech.eng. | three-way stopcock | kolmekäigukraan |
| mech.eng. | three-way tap | kolmekäigukraan |
| mech.eng. | three-way valve | kolmekäigukraan |