Other – el otro (m) la otra (f)
(Pronounced o-tro (m) or o-tra (f))
To remember that other is pronounced o-tro or o-tra (otro/otra) in Spanish, use the following mnemonic:
The others looked on in envy as the clever otters rowed (otro (m)) down stream in their canoe.

The other otters ran (otra (f)) alongside.
Examples of otro/otra (other) in a sentence
Quiero el otro pastel, no este.
(I want the other cake, not this one.)
Ella vive en el otro lado de la ciudad.
(She lives on the other side of the city.)
El otro estudiante llegó tarde.
(The other student arrived late.)