[pen-ahyn] 
| a mountain range on the border between Switzerland and Italy: part of the Alps. Highest peak, Monte Rosa, 15,217 ft. (4640 m). |
| Pen·nine Alps (pěn'īn') A range of the Alps extending southwest to northeast along the Swiss-Italian border from Great St. Bernard Pass to Simplon Pass. It rises to 4,636.9 m (15,203 ft) at Monte Rosa. |
aɪn