1. hinder or prevent the progress or accomplishment of

Similar word(s): block, blockade, embarrass, hinder, stymie, stymy

Definition categories: social, forbid, foreclose, forestall, preclude, prevent

2. block passage through

- obstruct the path

Similar word(s): block, impede, jam, obturate, occlude

Definition categories: contact, hinder, impede

3. shut out from view or get in the way so as to hide from sight

- The trees obstruct my view of the mountains

Similar word(s): block

Definition categories: perception, conceal, hide