Mormons only worship Heavenly Father and not Jesus Christ. They are taught to “worship your Heavenly Father and express your gratitude for His Son, Jesus Christ” (True to the Faith, p. 188). Since Mormons do not believe in the Trinity, they believe they are following the first commandment of worshipping only one God when they only worship Heavenly Father.
Dictionary of Mormonese
Dictionary of "Mormonese"
Stop talking past each other. Gain a better understanding of the words that are unique to Mormonism and the differences of shared terms between Mormonism and Christianity.