"Pronunciation" is the Engpsh word for "读音." Pronunciation comes from the Latin word "pronuntiatio" which means "declaration" or "utterance."
Examples:
"Can you give me the correct pronunciation of this word?" (你能告诉我这个单词正确的读音吗？)
"I'm having trouble with the pronunciation of 'th'" (我在读音上有点困难)
"The pronunciation of this word has changed over time." (这个单词的读音随着时间的推移发生了变化。)