There are "two" morphemes in the word chimps.
A morpheme is the littlest grammatical unit in a dialect. At the end of the day, it is the smallest meaningful unit of a dialect. The field of study committed to morphemes is called morphology. A morpheme isn't identical to a word, and the main difference between the two is that a morpheme might not be seen as alone, though a word, by definition, is freestanding.
