1. A numeral or string of numerals that is used for identification
   - number

Type of: positive identification

• chalkstone
• chalky
• challah
• challan
• challenge
• challengeable
• challenger
• challenging
• challis
• Chalons
• Chalons-sur-Marne
• chalumeau
• chalybeate
• chalybite
• Chamaea
• Chamaea fasciata
• Chamaecrista
• Chamaecrista fasciculata
• Chamaecyparis
• Chamaecyparis lawsoniana
• Chamaecyparis nootkatensis
• Chamaecyparis thyoides
• Chamaecytisus
• Chamaecytisus palmensis
• Chamaedaphne