contrabasso

[kon-truh-bas-oh, -bah-soh; Italian kawn-trah-bahs-saw] /ˌkɒn trəˈbæs oʊ, -ˈbɑ soʊ; Italian ˌkɔn trɑˈbɑs sɔ/
noun, plural contrabassos, contrabassi
[kon-truh-bas-ee, -bah-see; Italian kawn-trah-bahs-see] /ˌkɒn trəˈbæs i, -ˈbɑ si; Italian ˌkɔn trɑˈbɑs si/ (Show IPA),
adjective
Origin
< Italian contrabbasso, equivalent to contra- contra-2 + basso bass1