The definition of joist

2 Definitions of: joist

1. noun, a beam made of timber, steel, or reinforced concrete, used in the construction of floors, roofs, etc. See also rolled-steel joist
2. verb, to construct (a floor, roof, etc) with joists
3. Show me some examples of this word: joist
4. Show me the etymology of the word: joist

No synonyms or antonyms found for word joist

From Collins