The word for ‘little’ in Spanish is ‘poco’ when used in a general context. For example, if you want to say ‘a little bit,’ you would say ‘un poco.’
However, if you’re referring to something that is small in size, you might use the word ‘pequeño’ for masculine nouns and ‘pequeña’ for feminine nouns. For instance, ‘a little dog’ would be ‘un perro pequeño,’ while ‘a little house’ would be ‘una casa pequeña.’
So, depending on the context, you can choose either ‘poco’ for quantity or ‘pequeño/pequeña’ for size. Both words help convey the idea of something being little, but they have different uses in the Spanish language.