Male genital organ and Privates

Male genital organ noun - External male sex organs.

Privates and male genital organ are semantically related. In some cases you can use "Privates" instead a noun phrase "Male genital organ".

Privates noun - External sex organ.

Male genital organ and privates are semantically related. Sometimes you can replace phrase "Male genital organ" with "Privates", this terms are similar.