Deep – profundo (m)/profunda (f)
(Pronounced proh-foon-doh or proh-foon-dah)
To remember that deep is pronounced proh-foon-doh or proh-foon-dah (profundo/profunda) in Spanish, use the following mnemonic:
His knowledge is deep - although he professes to be a buffoon, don't (profuno) underestimate him.