1. block (an opening, path, road, etc.); be or get in the way of: "she was obstructing the entrance"Similarblockblock upclogclog upget/stand in the way ofcut offshut offjambung upgum upchokebarricadebardam upinformal:gunge updated:cumbertechnical:occludeobturateOppositeclear
▪ prevent or hinder (movement or someone or something in motion): "they had to alter the course of the stream and obstruct the natural flow of the water"Similarhold upbring to a standstillstophaltblock
▪ deliberately make (something) difficult: "fears that the regime would obstruct the distribution of food"Similarhold upbring to a standstillstophaltblock
▪ commit the offence of intentionally hindering (a police officer): "the appellants were arrested, and later convicted of obstructing the police"