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.

╂[American English < Spanish sierra (literally) a saw < Latin serra]

Si|er|ra «see EHR uh», noun.

U.S. a code name for the letter s, used in transmitting radio messages.