| Subject | English | Spanish |
| stat. | half width | mitad de la anchura |
| math. | half-width | mitad de la anchura |
| math. | half-width | amplitud media |
| math. | half-width | semi-recorrido |
| math. | half-width | semi-amplitud |
| laser. | half-width of a band | anchura a media altura (de una banda) |
| comp., MS | half-width character | carácter de ancho medio (In a double-byte character set, a character that is represented by one byte and typically has a full-width variant) |