| Subject | English | Spanish |
| math. | unlike denominators | denominadores distintos (e.g., fractions with unlike denominators = fracciones con distinto denominador ; fraccines con denominadores distintos) |
| math. | unlike denominators | distinto denominador |
| med. | unlike twins | gemelos dicoriales |
| med. | unlike twins | gemelos dizigóticos |
| med. | unlike twins | gemelos fraternos |
| med. | unlike twins | gemelos disimilares |
| med. | unlike twins | gemelos biovulares |