KEY: Foundation.
SYN: Institution, establishment, footing, base, basis, origin,ground, groundwork, rudiments, substratum, {underlying_principle}.
ANT: Disestablishment, superstructure.

• Resident
• Reside, [See ABIDE]
• Residue, [See REMAINDER]
• Resign
• Resignation
• Resist
• Resistance
• Resistible
• Resolute
• Resolution
• Resolve, [See DECIDE]
• Resonant
• Resort
• Resort \v
• Resound
• Resource, Resources
• Respectable \a
• Respective
• Respect
• Respect \v
• Respite, [See REPRIEVE]
• Resplendent
• Respond
• Respond, [See DESPAIR]
• Response, [See ANSWER]