adverb, adverb taking the 'to' particle
Mimetic adverb describing a light, airy, or delicate manner, often with と. Used for gentle touches, faint sensations, or soft textures.
山の端があわあわと明るくなってきた。
The edge of the mountains began to grow faintly bright.
彼女はアワアワと触れた。
She touched it delicately.