

El origen de esas piedras sigue siendo un enigma para los científicos.
[el oˈɾixen de ˈesas ˈpjeðɾas ˈsiɣe ˈsjendo un eˈniɣma ˈpaɾa los θjenˈtifikos.]
The origin of those stones is still an enigma to scientists.
¿Has conseguido resolver el enigma del final del libro?
[¿ˈas konseˈɣiðo resolˈβeɾ el eˈniɣma ðel fiˈnal del ˈliβɾo?]
Have you managed to solve the riddle at the end of the book?
La novela está llena de enigmas que el lector debe descifrar.
[la noˈβela esˈta ˈʎena ðe eˈniɣmas ke el lekˈtoɾ ˈðeβe ðesθiˈfɾaɾ.]
The novel is full of puzzles that the reader has to figure out.
"el enigma" is in the lesson "Stories" (Level 33), along with 14 other useful words. LinDuo has 180 topic lessons like this one, 2,369 words in total. Every word has an illustration, a transcription and pronunciation in a female and a male voice. Just 10–15 minutes a day is enough to learn them all. Free, and works offline.