Added 9 October 2026 centimeter noun Categories: Describing WordsRare Words noun ! Definition from WordNet 3.1, Princeton University. More about centimeter at Wordnik → Where our words come from → A metric unit of length equal to one hundredth of a meter. Related Words: centimetrecminchtallcentimetre-gram-secondcentimeter-gramme-secondcentimetre-gramme-secondmillimeter Back to today's word