xi
| Noun | 1. |  XI - the cardinal number that is the sum of ten and one |
| 2. | xi - the 14th letter of the Greek alphabet | |
| Adj. | 1. | xi - being one more than ten |
| Xi - A VLSI design language. ["The Circuit Design Language Xi", S.I. Feldman, unpublished memo, Bell Labs, 1982]. [Mentioned in Computational Aspects of VLSI, J.D. Ullman, CS Press 1984]. |