| Subject | English | Estonian |
| commun. | internet signalling transport protocol | interneti signaliseerimisprotokoll |
| fin. | risk of negative signalling | negatiivsete signaalide andmise risk |
| comp., MS | signal event | signaaliteade (In a statechart or activity diagram, an indication that one object has received a signal from another. A signal can be declared by using the keyword signal on a class in a class diagram) |
| chem. | signal word | tunnussõna |
| transp. | TSI Control Command and Signalling for High Speed and Conventional Rail systems | kiir- ja tavaraudteesüsteemi kontrolli ja signaalimise KTK |