Block and Roll back

Block verb - To close up so that no empty spaces remain.

Roll back and block are semantically related In some cases you can use "Roll back" instead a verb "Block".

Nearby Words: blocked, blockade, blockage, blockhead, blocking

Roll back verb - To put an end to by formal action.

Block and roll back are semantically related in conquer in military manner topic. Sometimes you can use "Block" instead a verb "Roll back".