grand·dad 
(grăndăd′)
(grăndăd′)n.
Informal
Informal
A grandfather.
- substantive
- substantively
- substantiveness
- substantive right
- substation
- substituent
- substitutability
- substitutable
- substitute
- substitution
- substitutional
- substitutionally
- substitutionary
- substitutive
- substrate
- substrative
- substratum
- substruction
- substructional
- substructural
- substructure
- subsumable
- subsume
- subsumption
- subsumptive