Pub and Road house

Pub noun - A place of business where alcoholic beverages are sold to be consumed on the premises.

Road house and pub are semantically related in place topic. In some cases you can use "Road house" instead a noun "Pub", when it comes to topics like saloon.

Pub and road house are semantically related in place topic. You can use "Pub" instead a noun phrase "Road house", if it concerns topics such as saloon.