Similar words
barrica
barrica is slightly smaller, a wine-cask specifically; barril is more general, like a beer barrel — both mean "barrel."
Similar in other languages
Spanish
barril
barril is the Spanish word for the same thing — both mean "barrel."
Spanish
tonel
tonel is the Spanish word for the same thing — both mean "barrel."
Practice
1 What does barril mean?
barrel
2 Fill the gap: O vinho está no ___.
Full sentence: O vinho está no barril. (The wine is in the barrel.)
3 Which fingerprint chart matches barril?
barril: neutral register, common frequency, general domain, neutral connotation.