block

Synonyms: bar brick cake chunk cube hunk ingot loaf lump oblong piece section segment slab slice solid square

Synonyms: bar barrier blank wall blockage chunk clog hindrance impediment jam mass obstacle obstruction roadblock snag stop stoppage wall

Antonyms: opening

Synonyms: arrest bar barricade blockade block out brake catch charge check choke clog close close off close out congest cut off dam deter fill halt hang up hinder hold up impede intercept interfere with occlude plug prevent shut off shut out stall stonewall stop stopper stop up stymie tackle take out of play thwart

Antonyms: let go let up open unblock