- si|er|ra
- si|er|ra «see EHR uh», noun.1. a chain of hills or mountains whose peaks suggest the teeth of a saw: »
The road wound up the bold sierra which separates the great plateaus of Mexico and Puebla (William H. Prescott).
2. any one of certain Spanish mackerels, such as the cero.Si|er|ra «see EHR uh», noun.U.S. a code name for the letter s, used in transmitting radio messages.
Useful english dictionary. 2012.