“Ujawnić” seems to have various meanings and can be translated into numerous different words in English. Unfortunately most people regularly choose the wrong word.

Here’s a typical example:

POLISH
W dziale I-Sp księgi wieczystej nr WA4M/00847639/5 ujawnione zostało prawo użytkowania wieczystego o okresie użytkowania do 5 grudnia 2089 roku, a nadto wpisane są uprawnienia wynikające z prawa ujawnionego w dziale III innych ksiąg wieczystych. 

WRONG
In Section I of land and mortgage register no. WA4M/00847639/5 a right of perpetual usufruct has been disclosed for the period until 5 December 2089. Entitlements arising from the right revealed in section III of other land and mortgage registers have also been entered.

“Ujawnić” is commonly used in references to land and mortgage registers (and other public registers) and is usually translated as either “reveal” or “disclose”.

“Reveal” is always incorrect as it means “to make something known that was previously hidden or secret”. So if you were to reveal something in the land and mortgage register you would be uncovering information that was already there. This is not what “ujawnić” means in this context.

“Disclose” can have the same meaning as “reveal”, but is also used in legal contexts to mean “to make public”. A company can be required, for example, to disclose certain financial information. So in some contexts “ujawnić” does mean “disclose”, but not in all contexts.

If you are talking about adding new information to a public register, then use “enter” or “register”.

If you are referring to information that is already in a public register, you can usually also use “enter” or “register”, as well as “list”, “evidence”, “give”, “provide” or simply “is”.

So I would correct the above example as follows:

RIGHT
In Section I of land and mortgage register no. WA4M/00847639/5 a right of perpetual usufruct has been entered for the period until 5 December 2089. Entitlements arising from a right entered in section III of other land and mortgage registers have also been entered.

Using “entered” twice in the second half of the sentence is rather awkward. The example could be entirely rewritten as follows:

EVEN BETTER
Section I of land and mortgage register no. WA4M/00847639/5 evidences a right of perpetual usufruct for the period until 5 December 2089. Entitlements arising from a right entered in section III of other land and mortgage registers are also listed.

Only use “disclose” when you’re talking about adding information to a public register in order to reflect a change of status (e.g. changes in ownership, transfers of title etc.). For example:

If the preliminary sale agreement is concluded with the Seller we recommend registering / disclosing the Company’s claim resulting from the preliminary agreement in the LMRs kept for the Properties. This will be beneficial for the Company, as disclosing such claim in the land and mortgage register will result in the claim’s effectiveness against all parties, including subsequent owners of the property.

More examples:

WRONG
The name of the representative is disclosed in the commercial register of the National Court Register.

RIGHT
The name of the representative is given in the commercial register of the National Court Register.
The name of the representative is provided in the commercial register of the National Court Register.
The name of the representative is in the commercial register of the National Court Register.

WRONG
In Section II of land and mortgage register no. WA4M/00437480/5, the State Treasury is disclosed as the owner of the land, whereas the Company is disclosed as a perpetual usufructuary of the land and the owner of a building constituting separate real property.

RIGHT
In Section II of land and mortgage register no. WA4M/00993564/5, the State Treasury is listed as the owner of the land, whereas the Company is registered as a perpetual usufructuary of the land and the owner of a building constituting separate real property.

 WRONG
All easements must be established within 30 days of signing this agreement and revealed in the relevant land and mortgage registers.

 RIGHT
All easements must be established within 30 days of signing this agreement and disclosed in the relevant land and mortgage registers.