Know-nothing and Know nothing

Know-nothing noun - A stupid person.

Know nothing and know-nothing are semantically related In some cases you can replace phrase "Know nothing" with "Know-nothing", this phrases are similar.

Know nothing noun - An ignorant person.

Know-nothing and know nothing are semantically related in simpleton topic. Sometimes you can use "Know-nothing" instead the phrase "Know nothing" as a noun or an adjective, if it concerns topics such as flighty, lacking knowledge.