Small – el pequeño / la pequeña
(Pronounced pe-kay-nee-oh or pe-kay-nee-ah)
To remember that small is pronounced pe-kay-nee-oh or pe-kay-nee-ah (pequeño/pequeña) in Spanish, use the following mnemonic:
It was only a small bird - but its peck caused a pain in my knee - 'Oh!' (pequeno)