obstruct

As a letter s

is the letter s with a.

As a verb obstruct is

to block or fill (a passage) with obstacles or an obstacle see synonyms at block.

Obstruct is a related term of counteract.

As verbs the difference between obstruct and counteract

is that obstruct is to block or fill (a passage) with obstacles or an obstacle see synonyms at block while counteract is to act in opposition to; thwart; to hinder, defeat, or frustrate, by contrary agency or influence; as, to counteract the effect of medicines; to counteract good advice.

Contradict is a related term of obstruct.

As verbs the difference between contradict and obstruct

is that contradict is (obsolete) to speak against; to forbid while obstruct is to block or fill (a passage) with obstacles or an obstacle see synonyms at block.

Obstruct is a related term of lay_hold.

Oppugn is a related term of obstruct.

As verbs the difference between oppugn and obstruct

is that oppugn is (rare) to contradict or controvert; to oppose; to challenge or question the truth or validity of a given statement while obstruct is to block or fill (a passage) with obstacles or an obstacle see synonyms at block.

Resist is a synonym of obstruct.

As verbs the difference between resist and obstruct

is that resist is to attempt to counter the actions or effects of while obstruct is to block or fill (a passage) with obstacles or an obstacle see synonyms at block.

As a noun resist

is a protective coating or covering oxford english dictionary , 2nd ed, 1989.

Perplex is a related term of obstruct.

As verbs the difference between perplex and obstruct

is that perplex is to cause to feel baffled; to while obstruct is to block or fill (a passage) with obstacles or an obstacle see synonyms at block.

As an adjective perplex

is (obsolete) intricate; difficult.

Bridle is a related term of obstruct.

As verbs the difference between bridle and obstruct

is that bridle is to put a bridle on while obstruct is to block or fill (a passage) with obstacles or an obstacle see synonyms at block.

As a noun bridle

is the headgear with which a horse is directed and which carries a bit and reins.

As a verb obstruct

is to block or fill (a passage) with obstacles or an obstacle see synonyms at block.

As a noun congestion is

congestion.

As a verb obstruct

is to block or fill (a passage) with obstacles or an obstacle see synonyms at block.

As a noun cutoff is

the point at which something terminates or to which it is limited.