Divided highway and Highway

Divided highway noun - A highway divided down the middle by a barrier that separates traffic going in different directions.

Highway and divided highway are semantically related. In some cases you can use "Highway" instead a noun phrase "Divided highway".

Highway noun - A passage cleared for public vehicular travel.

Divided highway and highway are semantically related. Sometimes you can replace phrase "Divided highway" with "Highway", this terms are similar.