public trust vs charitable trust

public trust and charitable trust both are nouns.

Word	Noun	Adjective	Verb	Adverb
public trust	Yes	No	No	No
charitable trust	Yes	No	No	No

As nouns, public trust and charitable trust are synonyms defined as:

public trust and charitable trust: a trust created for charitable or religious or educational or scientific purposes

public trust (noun)	charitable trust (noun)
a trust created for charitable or religious or educational or scientific purposes	a trust created for charitable or religious or educational or scientific purposes