What does "daydream" mean?

Native speaker’s answer
Rebecca
A "daydream" is a pleasant imagined thought or scenario that distracts you when awake. It is similar to dreaming at night, but it is when you are awake. Ex: Helen has been daydreaming and staring outside her window the whole day. Ex: I can't focus in class because I daydream all the time. Ex: I like to watch the clouds and daydream.