an image that represents you on your profile (= information about your life, work, interests, etc. on a social networking website), usually a photograph of yourself

When my date arrived at the restaurant, he looked nothing like his profile picture.

Usually, you can also see a thumbnail of someone's profile picture, and a list of people they are friends with. 通常，您还可以看到某人个人资料图片的缩略图，以及他们的好友列表。