Natural language and Spoken language

Natural language noun - A human written or spoken language used by a community; opposed to e.g. a computer language.

Spoken language and natural language are semantically related. in human language topic. In some cases you can use "Spoken language" instead a noun phrase "Natural language".

Spoken language noun - (language) communication by word of mouth.

Natural language and spoken language are semantically related. Sometimes you can replace phrase "Natural language" with "Spoken language", this phrases are similar.