

O peixe no aquário está morto.
Encontrei um pássaro morto no jardim.
O gato não está morto, está a dormir.
"morto" is in the lesson "Health" (Level 26), along with 12 other useful words. LinDuo has 180 topic lessons like this one, 2,380 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.