Nouns
The basic form of a Polish noun is the nom. sg. A noun also has a genus, which can be neuter, feminine or maskuline with the different specializations inanimate, animate and virile.
The vocabulary contains different words for the same basic form, if they have a different meaning and also different forms. An example is "bal", which can mean a kind of party (with gen. sg. "balu") or a kind of floor (with gen. sg. "bala"). Other examples are "oko" and "pokój".
Some nouns do not have plural forms, e.g. "miłość". This is why all plural forms are deletable, and it is sufficient to delete the nom. pl., because all other forms are derived from this form.
Some nouns do not have singular forms, e.g. "rodzice" or "nożyce". This is why all singular forms are deletable, and if the nom. sg. is deleted, the nom. pl. needs to be added as a separate step.
Forms:
| Form name | Derived from | multi-entry | deletable |
| N sg. | - | X | |
| translation | X | - | |
| gender | N sg. | - | - |
| animate | gender, virile | - | X |
| virile | gender | - | X |
| G sg. | N sg., animate, gender | X | X |
| D sg. | G sg., N sg., gender | X | X |
| A sg. | G sg., N sg., animate, gender | X | X |
| I sg. | G sg., N sg., gender | X | X |
| L sg. | D sg., G sg., N sg., gender | X | X |
| V sg. | G sg., L sg., N sg., gender | - | X |
| N pl. | G sg., N sg., gender, virile | X | X |
| G pl. | G sg., N pl., N sg., gender, virile | X | X |
| D pl. | G sg., N pl., N sg., gender, virile | - | X |
| A pl. | G pl., N pl., gender, virile | X | X |
| I pl. | G sg., N pl., N sg., gender, virile | X | X |
| L pl. | G sg., N pl., N sg., gender, virile | - | X |
| V pl. | N pl. | X | X |