der Schmetterling
butterfly
An insect with two pairs of large, often brightly colored wings that develops from a caterpillar.
Ein bunter Schmetterling landete auf der Blüte.
A colorful butterfly landed on the flower.

butterfly
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butterfly
An insect with two pairs of large, often brightly colored wings that develops from a caterpillar.
Ein bunter Schmetterling landete auf der Blüte.
A colorful butterfly landed on the flower.

You can easily recognize the meaning of 'Schmetterling' (butterfly) from the context. If people are talking about nature, flowers, or insects, the animal is meant. In the context of sports, a swimming pool, or a competition, the swimming stroke is meant.
Im Sommer fliegen viele Schmetterlinge im Garten.
In summer, many butterflies fly around in the garden.
When 'Schmetterling' (butterfly) is meant as an insect, it is often used with the verbs 'fliegen' (to fly), 'flattern' (to flutter), or 'landen' (to land).
Ein gelber Schmetterling flattert von Blüte zu Blüte.
A yellow butterfly flutters from flower to flower.
As a swimming stroke, 'Schmetterling' (butterfly) is often used without an article and in combination with a distance.
Er schwimmt die 100 Meter Schmetterling in unter einer Minute.
He swims the 100-meter butterfly in under a minute.
The idiom 'Schmetterlinge im Bauch haben' (to have butterflies in one's stomach) is a fixed unit. It describes the feeling of being in love and is always used in this form.
Vor dem ersten Date hatte ich totale Schmetterlinge im Bauch.
Before the first date, I had total butterflies in my stomach.
admiral
'Admiral' and 'Schmetterling' can be connected because 'Admiral' is also the name of a specific butterfly. 'Schmetterling' is the general term for such insects. 'Admiral', on the other hand, is either a high rank in the navy or, in a nature context, a specific species of butterfly. The words can be confusing because 'Admiral' first sounds like a military word. When the topic is animals, gardens, or nature, 'der Admiral' usually means the butterfly with dark wings and an orange-red band.

Ein gelber Schmetterling flog langsam über die Wiese.
A yellow butterfly flew slowly over the meadow.
Auf der Blume saß ein Admiral mit schwarzen Flügeln und einer roten Binde.
A red admiral with black wings and a red band was sitting on the flower.