1 [T] feed sb/sth (on) (sth) to give food to a person or an animal 给食物；喂: Don't forget to feed the dog. 别忘了喂狗。I can't come yet. I haven't fed the baby. 我未喂孩子，还不能来。Some of the snakes in the zoo are fed (on) rats. 动物园里有些蛇被喂以老鼠。

2 [I] feed (on sth) (used about animals or babies) to eat （指动物或婴孩）吃: What do horses feed on in the winter? 马在冬天吃什么？Bats feed at night. 蝙蝠夜间觅食。

3 [T] feed A (with B);feed B into/to/through A to supply sb/sth with sth; to put sth into sth else 提供；把（一物）放入（另一物）: This channel feeds us with news and information 24 hours a day. 这个频道昼夜不停地向我们播送新闻和信息。Metal sheets are fed through the machine one at a time. 金属板一张一张地被送入那台机器。