| Nominative | slúchadlo; sluchadlo |
| Genitive | slúchadla; sluchadla |
| Dative | slúchadlu; sluchadlu |
| Accusative | slúchadlo; sluchadlo |
| Locative | slúchadle; sluchadle |
| Instrumental | slúchadlom; sluchadlom |
| Nominative | slúchadlá; sluchadlá |
| Genitive | slúchadiel; sluchadiel |
| Dative | slúchadlám; sluchadlám |
| Accusative | slúchadlá; sluchadlá |
| Locative | slúchadlách; sluchadlách |
| Instrumental | slúchadlami; sluchadlami |