stimulation (n.)
- actuation
 - aggravation
 - agitation
 - animation
 - arousal
 - atomization
 - bait
 - bombardment
 - bracer
 - bracing
 - breeding
 - bribe
 - bullet
 - carrot
 - cleavage
 - cordial
 - direction
 - dissociation
 - electrification
 - emotion
 - encouragement
 - energizing
 - exacerbation
 - exasperation
 - excitation
 - excitement
 - exhilaration
 - fillip
 - firing
 - fission
 - fomentation
 - galvanization
 - incentive
 - incitation
 - incitement
 - inducement
 - inflammation
 - influence
 - infuriation
 - instigation
 - interest
 - invigoration
 - invitation
 - ionization
 - irritation
 - lure
 - motivation
 - payment
 - percentage
 - perturbation
 - pick-me-up
 - profit
 - prompting
 - provocation
 - quickening
 - recreation
 - refection
 - refreshment
 - renewal
 - revitalization
 - revival
 - revivification
 - reward
 - stimulus
 - stirring
 - sweetener
 - sweetening
 - target
 - tonic
 - vitalization
 - vivification