(computing, slang) To use products or services one is selling internally, in order to understand their limitations.

(uncountable) Any solid substance that can be consumed by living organisms, especially by eating, in order to sustain life. / (countable) A foodstuff.

(slang) A serious mistake. / (programming) A metasyntactic variable name, a place holder for words; compare foo, bar.

Nourishment for the soul; spiritual sustenance. / (US) A style of food originating in the rural southern US, traditionally associated with African Americans.

Food for fish that are kept in aquaria; sprinkled on the surface of the water, usually in the form of dry flakes. / (slang) A person who dies by drowning.

(US) Alternative spelling of food colouring

A type of food specially formulated for the feeding of cats, typically composed of processed grain and meat byproducts as dry food or canned fish or meat as wet food.

A populated region where food, especially healthy food, is difficult to obtain.

Any non-food substance added to food in order to improve its flavour, appearance or shelf life

The feeding relationships between species in a biotic community. / (idiomatic) A hierarchy.