enda

In a sentence

• Jag är den enda som känner till hemligheten.

  I am the only one who knows the secret.

  Here, 'enda' is used as an adjective meaning 'only/single/unique' to specify that the speaker is the sole person who knows the secret.

• Det är otroligt att detta är det enda exemplet vi har.

  It's incredible that this is the only example we have.

  In this sentence, 'enda' is used to emphasize that a singular example exists.

• Han skrev inte ett enda ord under mötet.

  He did not write a single word during the meeting.

  Here, 'enda' reinforces the meaning of 'ett ord' to denote a complete lack of any words being written, intensifying the exclusivity of 'single' as in 'not even one.'