| Y Teulu | The family |
| Mam | Mother |
| Tad | Father |
| Rhieni | Parents |
| Brawd | Brother |
| Chwaer | Sister |
| Gŵr | Husband |
| Gwraig | Wife |
| Nain | Grandmother |
| Taid | Grandfather |
| Modryb | Aunt |
| Ewythr | Uncle |
| Cefnder | Male cousin |
| Cyfnither | Female cousin |
| Nai | Nephew |
| Nith | Niece |
| Å´yr | Grandson |
| Wyres | Grand-daughter |
| Brawd -yng-nghyfraith | Son in law |
| Chwaer-yng-nghyfraith | Sister in law |
| Mam-yng-nghyfraith | Mother in law |
| Tad-yng-nghyfraith | Father in law |
| Perthynas | Relative |
| Llysfam | Step mother |
| Llystad | Step father |
| Llysfrawd | Step brother |
| Llyschwaer | Step sister |
| Llysfab | Step son |
| Llysferch | Step daughter |
| Dw i'n unig blentyn. | I'm an only child. |
| Mae gen i deulu bach. | I have a small family. |
| Mae gen i deulu estynedig mawr. | I have a large extended family. |
Welsh in the Workplace
