This is the 12618th most frequent Spanish word.
muertas
"Muertas" means "dead" (feminine plural).
Adjective describing the state of the leaves.
Las hojas están muertas en otoño.
The leaves are dead in autumn.
Figurative expression indicating extreme tiredness.
Ellas parecen estar muertas de cansancio después de correr.
They seem to be dead tired after running.
Metaphoric use describing emptiness or lack of activity.