How do you say the word entropy?

How do you pronounce Negentropy?

negentropy Pronunciation. ne·gen·tropy.

How do you say J in English?

Its usual name in English is jay (pronounced /ˈdʒeɪ/), with a now-uncommon variant jy /ˈdʒaɪ/.
J
Language of origin Latin language
Phonetic usage [j] [dʒ]~[tʃ] [x~h] [ʒ] [ɟ] [ʝ] [dz] [tɕ] [gʱ] [t]~[dʑ] [ʐ] [ʃ] [c̬] [i] /dʒeɪ/ /dʒaɪ/

Is pronounce a word?

verb (used with object), pro·nounced, pro·nounc·ing. to enunciate or articulate (sounds, words, sentences, etc.). to utter or articulate in the accepted or correct manner: I can’t pronounce this word. to declare (a person or thing) to be as specified: She pronounced it the best salmon she had ever tasted.