clean clothes : washing machine A+
The word pair that would best complete the analogy is DECEPTION GUILE.
I can do
Reproach : praise completes the analogy.
Urge
Drawback
guard : sentinel
soothe
The word pair "AWARENESS APATHY" would best complete the analogy. Perception is to awareness as insensitivity is to apathy, highlighting the contrast in attentiveness and emotional response.
Snarl grow
toughen : strengthen
Reproach praise
Awareness and ignorance.