1. 随便对待;不很认真地考虑
If you toy with an idea, you consider it casually without making any decisions about it.
2. (尤指心不在焉地)玩弄，摆弄
If you toy with an object, you keep moving it around with your fingers, especially while you are thinking about something else.
3. 拨弄(食物);漫不经心地小口啜(饮料)
If you toy with food or drink, you do not eat or drink it with any enthusiasm, but only take a bite or a little drink from time to time.
1. take into consideration, have in view
e.g. He entertained the notion of moving to South America