1. One's native language; the language learned by children and passed from one generation to the next
   - mother tongue, first language

Type of: natural language, tongue

• core bit
• core drill
• core dump
• core group
• core memory
• core out
• coreference
• coreferent
• coreferential
• coregent
• Coregonidae
• Coregonus
• Coregonus artedi
• Coregonus clupeaformis
• coreid
• coreid bug
• Coreidae
• coreligionist
• corella
• Corelli
• coreopsis
• Coreopsis gigantea
• Coreopsis maritima
• Coreopsis tinctoria
• corer