Similar words
caderneta
caderneta specifically means a smaller booklet or passbook, like a bank passbook, "caderneta de poupança"; caderno is the standard school notebook.
Similar in other languages
Spanish
cuaderno
cuaderno is the Spanish word for the same thing — both mean "notebook."
Spanish
libreta
libreta is the Spanish word for the same thing — both mean "notebook."
French
cahier
cahier is the French word for the same thing — both mean "notebook."
Practice
1 What does caderno mean?
notebook
2 Fill the gap: Escrevi no ___.
Full sentence: Escrevi no caderno. (I wrote in the notebook.)
3 Which fingerprint chart matches caderno?
caderno: neutral register, core frequency, general domain, neutral connotation.