affinity; feeling of closeness (with someone); feeling of kinship
彼に親近感を感じた。
I felt a sense of closeness to him.
初めて会ったのに親近感を覚えた。
I felt a sense of familiarity even though we had just met.
同じ趣味を持つ人には自然と親近感が生まれるものだ。
A sense of closeness naturally arises between people who share the same interests.