Inflected forms: pl. skis 1a. One of a pair of long flat runners of plastic, metal, or wood that curve upward in front and may be attached to a boot for gliding or traveling over snow. b. A water ski. 2. Something that is used as a runner on a vehicle: a helicopter with skis for landing on snow and ice.
VERB:
Inflected forms: skied, ski·ing, skis
INTRANSITIVE VERB:
To travel or glide on skis, especially as a sport.
TRANSITIVE VERB:
To travel or glide over on skis: ski a mountain slope.
ETYMOLOGY:
Norwegian, from Old Norse skdh, stick, snowshoe. See skei- in Appendix I.