a shape which is not straight curved the hard part of a bird's mouth (also known as 'a beak') a bill to extract small, solid items from a liquid to filter plants that grow in water, usually very small and with no roots or leaves algae a baby bird a chick 1) to give food to a person or animal; 2) to eat (this usage is only for animals or babies) to feed the area inside your neck, at the back of your mouth your throat to reduce something (energy, colour, money, etc.) to a point where there is not enough of it to drain something https://339efcb25eb75e967b0d-ff8eeadd950d51fd1fc939dca75b3973.ssl.cf1.rackcdn.com/assets_default.swf