What context can I use each word in?
Learn when and how to use these words with these examples!
prevent
Example
Washing your hands frequently can help prevent the spread of germs. [prevent: verb]
Example
The new security system will prevent unauthorized access to the building. [prevent: verb]
obstruct
Example
The construction work on the road is obstructing traffic. [obstructing: present participle]
Example
The tree branches are obstructing the view of the lake. [obstructing: verb]
Good things to know
Which word is more common?
Prevent is more commonly used than obstruct in everyday language. Prevent is versatile and covers a wide range of contexts, while obstruct is more limited in its usage and typically refers to physical barriers or obstacles.
What’s the difference in the tone of formality between prevent and obstruct?
Prevent is more formal than obstruct, which is often used in casual conversation and may be considered less formal or professional.