| Subject | English | Catalan |
| comp., MS | allocation unit | unitat d'assignació (The smallest amount of disk space that can be allocated to hold a file) |
| comp., MS | change unit | unitat de modificació (The minimal unit of change tracking in a store. In change propagation, only the units that are changed must be sent; whereas, in conflict detection, independent changes to the same unit are considered a conflict) |
| comp., MS | child business unit | unitat de negoci secundària (A business unit that is immediately under another business unit in the business hierarchy of an organization) |
| math. | complex unit | unitat complexa |
| comp., MS | consistency unit | unitat de coherència (The minimal unit of data synchronization. Because all changes that have the same consistency unit are sent together, synchronization can never be interrupted with part of a consistency unit applied) |
| math. | defective unit | unitat defectuosa |
| libr. | display unit | expositor |
| math. | effective unit | unitat efectiva |
| math. | elementary unit | unitat elemental |
| math. | experimental unit | unitat experimental |
| math. | first stage unit | unitat de la primera etapa |
| environ. | forestry unit Any entity or group of individuals involved with the creation, management and conservation of an extensive area of woodland, often to produce products and benefits such as timber, clean water, biodiversity and recreation | unitat de silvicultura |
| math. | overlapping sampling units | unitats de mostreig sobreposades |
| comp., MS | parent business unit | unitat de negoci principal (A business unit that is immediately above another business unit in the business hierarchy of an organization) |
| math. | primary unit | unitat primària |
| load.equip. | push-pull unit | estira-i-empeny |
| math. | sample unit | unitat mostral |
| math. | sampling unit | unitat de mostreig |
| math. | second- stage unit | unitat secundària |
| math. | secondary unit | unitat secundària |
| environ. | touristic unit No definition needed | unitat turística |
| comp., MS | unit group | grup d'unitats (A compilation of the different measurements that a product is available in. A unit group contains the base unit in which a product is available, for example, a two-liter. It then lists all the different increments that this base unit is packaged in for sale, such as an individual two-liter bottle or a case of 6 two-liter bottles, and also indicates which measurement is the primary unit) |
| math. | unit normal random variable | variable aleatòria tipificada |
| math. | unit normal random variable | variable aleatòria estandarditzada |
| math. | unit stage sampling | mostreig monoetàpic |
| math. | unit stage sampling | mostreig unitari |
| math. | unit stage sampling | mostreig en una sola etapa |
| environ. | waste sorting unit Centralized recycling centres to which waste materials are brought and where they are separated | unitat de classificació de residus |