A1 an animal that is kept in the home as a companion and treated kindly宠物
Doctors have discovered that keeping a pet can do wonders for your health.
my pet dog
Some people are really soppy about their pets.
There was a fashion for keeping reptiles as pets.
Old people often rely on pets for comfort and companionship in their twilight years.
to be the person that someone in authority likes best and treats better than anyone else是（某人的）宠儿
informal approving a kind person who is easy to like讨人喜欢的人
UK informal a friendly way of talking to someone, especially a woman or a child宝贝，乖乖（尤用于称呼女性或孩子）
[ T ] If you pet an animal, child, etc., you touch it, him, or her gently and kindly with your hands.抚摸，爱抚，轻按
[ I ] informal If two people are petting, they are kissing and touching each other in a sexual way.（男女间）亲吻，爱抚
a theory, subject, hate, etc. that is special and important to you特别喜爱的理论／话题／特别讨厌的事物（等等）