sensitivity
US /ˌsen.səˈtɪv.ə.t̬i/
UK /ˌsen.səˈtɪv.ə.t̬i/

1.
the quality or condition of being sensitive; responsiveness to external stimuli.
:
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The new device has high sensitivity to light.
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Skin sensitivity can be caused by various factors.
2.
the ability to understand and share the feelings of another.
:
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He showed great sensitivity to her feelings.
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The therapist approached the topic with much sensitivity.