| Subject | English | Dutch |
| mech.eng. | effective face width | effektieve tandbreedte |
| mech.eng. | effective face width of bevel gear | effektieve tandbreedte van het kegeltandwiel |
| construct. | effective width | metwerkende breedte |
| agric. | effective width | nuttige breedte |
| mech.eng. | effective width angle | effektieve breedtehoek |
| el. | effective width of filled states | effectieve breedte van de bezette toestanden |
| construct. | span, clear width, clear span, effective span, width of span | overspanning |
| construct. | span, clear width, clear span, effective span, width of span | spanwijdte |
| construct. | span, clear width, clear span, effective span, width of span | spanning |
| el. | width of the effective overall noise band | breedte van de effectieve totale ruisband |