This is the 13012th most frequent German word.
zähnchen
"Zähnchen" is the diminutive form of "Zahn" and means "little tooth" in English.
Here, 'Zähnchen' is used as a diminutive form of 'Zähne' (teeth), referring affectionately to a single small tooth of a baby.
Das Baby hat heute sein erstes Zähnchen bekommen.
The baby got its first little tooth today.
In this sentence, 'Zähnchen' refers to the kitten's tiny teeth, emphasizing their small size and cuteness.
Das kleine Kätzchen zeigt zärtlich seine Zähnchen.
The small kitten gently shows its tiny teeth.
Here, 'Zähnchen' is employed humorously or peculiarly to describe a singular tooth from a dinosaur, using the diminutive form to possibly contrast the typical size assumption.