| Subject | English | Latvian |
| health., transp., mil., grnd.forc. | alcohol ignition lock | alkometrisks autobloķētājs |
| health., transp., mil., grnd.forc. | alcohol lock | alkometrisks autobloķētājs |
| transp., mech.eng. | anti-lock braking system | pretbloķēšanas sistēma |
| transp., mech.eng. | anti-lock braking system | antibloķēšanas sistēma |
| environ. | canal lock A chamber with gates on both ends connecting two sections of a canal or other waterway, to raise or lower the water level in each section | kanāla slūžas |
| comp., MS | CAPS LOCK | burtslēgs (A toggle key that, when on, shifts the alphabetic characters on the keyboard to uppercase) |
| comp., MS | CAPS LOCK key | burtslēga taustiņš (A toggle key that, when on, shifts the alphabetic characters on the keyboard to uppercase) |
| environ. | carbon lock-in | oglekļa iesīkste |
| environ. | carbon lock-in | "oglekļa slazds" |
| transp. | differential lock | diferenciāļa bloķētājs |
| transp., mech.eng. | lock actuator | bloķētājs |
| comp., MS | Lock Conference | Bloķēt konferenci (A button on Conference Controls that prevents anybody else from joining the current conference) |
| transp., mech.eng., construct. | lock cylinder | slēgcilindrs |
| transp., mil., grnd.forc. | lock-off device | saslēgšanas ierīce |
| comp., MS | lock screen | bloķēšanas ekrāns (The screen that appears when a user locks the PC) |
| comp., MS | Lock Session | Bloķēt sesiju (A button on the conference leader's Conference Controls that prevents anybody else from joining the current sharing session) |
| comp., MS | lock token | bloķēšanas pilnvara (The value that is returned on successful execution of the WebDAV LOCK method. This value is used to transact subsequent requests) |
| comp., MS | Lock Tracking | Obligāta izmaiņu reģistrēšana (An option that turns on change tracking and lets you set a password to prevent unauthorized users from turning it off) |
| transp., tech., law | locking chamber | bloķēšanas kamera |
| transp., mil., grnd.forc. | locking system | bloķēšanas sistēma |
| transp., tech., law | mechanical brake-cylinder locking device | bremžu cilindra mehāniskas bloķēšanas ierīce |
| comp., MS | rotation lock | pagriešanas bloķēšana (A software setting that disables display rotation) |
| comp., MS | rotation lock button | pagriešanas bloķēšanas poga (The button or slider on tablets and convertible tablets that rotates the display) |
| transp., tech., law | self-locking hexagonal nut | pašbremzējošs sešstūra uzgrieznis |
| comp., MS | subsidy lock | dotācijas slēdzene (A type of phone lock that original equipment manufacturers embed into their mobile phones at the request of mobile phone operators to prevent their use on a cellular network other than the one for which the phone was originally intended) |
| transp., tech., law | wheel lock | riteņa bloķēšanās |
| transp. | wheel lock sequence | riteņu bloķēšanās secība |
| transp., tech., law | wheel-locking | riteņa bloķēšanās |
