das Pünktchen
little dot
A very small dot. It is the diminutive form of 'Punkt' (dot/point).
Ihr Sommerkleid hatte ein Muster aus winzigen roten Pünktchen.
Her summer dress had a pattern of tiny red little dots.

little dot
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little dot
A very small dot. It is the diminutive form of 'Punkt' (dot/point).
Ihr Sommerkleid hatte ein Muster aus winzigen roten Pünktchen.
Her summer dress had a pattern of tiny red little dots.

'Pünktchen' (little dot) is the diminutive form of 'der Punkt' (the dot/point). With the ending '-chen', the vowel changes to an umlaut (u → ü), and the article is always 'das'.
Auf der Nase der Katze war ein kleines schwarzes Pünktchen.
There was a small black little dot on the cat's nose.
In its literal meaning, 'Pünktchen' (little dot) is often combined with adjectives such as 'klein' (small), 'winzig' (tiny), or 'fein' (fine/delicate). It often describes patterns on fabrics or small spots.
Sie trug ein blaues Kleid mit weißen Pünktchen.
She wore a blue dress with white little dots.
The expression 'das Pünktchen auf dem i sein' (to be the finishing touch) is a fixed structure. It describes a detail that makes something already good perfect.
Das Dessert war das Pünktchen auf dem i eines wunderbaren Abendessens.
The dessert was the finishing touch to a wonderful dinner.
point
'der Punkt' and 'das Pünktchen' can both mean a small round mark or a small spot. But 'Pünktchen' is the diminutive form and emphasizes that the dot is very small. In normal texts, with punctuation, or for a spot, people usually say 'Punkt'. 'Pünktchen' sounds more precise when you really mean something very small, for example on a dress or in a drawing. They can be confused because they look similar and belong together. Important: 'Punkt' has many other meanings, for example a topic, a place, or a point in a game. 'Pünktchen' does not fit there.

Auf dem Bild hat das Kind viele bunte Pünktchen gemalt.
The child drew many colorful little dots on the picture.
Am Ende des Satzes fehlt noch ein Punkt.
This sentence still needs a period.