1. (

• food ,
• nutrient

) any substance that can be metabolized by an animal to give energy and build tissue ;

2. (

• food ,
• solid_food

) any solid substance (as opposed to liquid) that is used as a source of nourishment; "food and drink" ;

3. (

• food ,
• food_for_thought ,
• intellectual_nourishment

) anything that provides mental stimulus for thinking ;