public treasury vs till

public treasury and till both are nouns.

Word	Noun	Adjective	Verb	Adverb
public treasury	Yes	No	No	No
till	Yes	No	Yes	No

As nouns, public treasury and till are synonyms defined as:

Other synonyms of public treasury include trough.

public treasury (noun)	till (noun)
a treasury for government funds	a strongbox for holding cash
	a treasury for government funds
	unstratified soil deposited by a glacier; consists of sand and clay and gravel and boulders mixed together

public treasury (verb)	till (verb)
	work land as by ploughing, harrowing, and manuring, in order to make it ready for cultivation